21499185890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1\times {\mathrm{523}}^1$

素因数の和:976

約数の個数: 128

約数和(自身を含む): 48171110400

約数和(自身を除く): 26671924510

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 199, 227, 398, 454, 455, 523, 910, 995, 1046, 1135, 1393, 1589, 1990, 2270, 2587, 2615, 2786, 2951, 3178, 3661, 5174, 5230, 5902, 6799, 6965, 7322, 7945, 12935, 13598, 13930, 14755, 15890, 18109, 18305, 20657, 25870, 29510, 33995, 36218, 36610, 41314, 45173, 47593, 67990, 90346, 90545, 95186, 103285, 104077, 118721, 181090, 206570, 208154, 225865, 237442, 237965, 316211, 451730, 475930, 520385, 587249, 593605, 632422, 728539, 831047, 1040770, 1174498, 1187210, 1353001, 1457078, 1543373, 1581055, 1662094, 2706002, 2936245, 3086746, 3162110, 3642695, 4110743, 4155235, 5872490, 6765005, 7285390, 7716865, 8221486, 8310470, 9471007, 10803611, 13530010, 15433730, 18942014, 20553715, 21607222, 23625479, 41107430, 47250958, 47355035, 54018055, 94710070, 108036110, 118127395, 165378353, 236254790, 307131227, 330756706, 614262454, 826891765, 1535656135, 1653783530, 2149918589, 3071312270, 4299837178, 10749592945, 21499185890]

約数ペア:

[(1, 21499185890), (2, 10749592945), (5, 4299837178), (7, 3071312270), (10, 2149918589), (13, 1653783530), (14, 1535656135), (26, 826891765), (35, 614262454), (65, 330756706), (70, 307131227), (91, 236254790), (130, 165378353), (182, 118127395), (199, 108036110), (227, 94710070), (398, 54018055), (454, 47355035), (455, 47250958), (523, 41107430), (910, 23625479), (995, 21607222), (1046, 20553715), (1135, 18942014), (1393, 15433730), (1589, 13530010), (1990, 10803611), (2270, 9471007), (2587, 8310470), (2615, 8221486), (2786, 7716865), (2951, 7285390), (3178, 6765005), (3661, 5872490), (5174, 4155235), (5230, 4110743), (5902, 3642695), (6799, 3162110), (6965, 3086746), (7322, 2936245), (7945, 2706002), (12935, 1662094), (13598, 1581055), (13930, 1543373), (14755, 1457078), (15890, 1353001), (18109, 1187210), (18305, 1174498), (20657, 1040770), (25870, 831047), (29510, 728539), (33995, 632422), (36218, 593605), (36610, 587249), (41314, 520385), (45173, 475930), (47593, 451730), (67990, 316211), (90346, 237965), (90545, 237442), (95186, 225865), (103285, 208154), (104077, 206570), (118721, 181090)]