15961218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 128

約数和(自身を含む): 43352064

約数和(自身を除く): 27390846

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 23, 26, 31, 39, 41, 42, 46, 62, 69, 78, 82, 91, 93, 123, 138, 161, 182, 186, 217, 246, 273, 287, 299, 322, 403, 434, 483, 533, 546, 574, 598, 651, 713, 806, 861, 897, 943, 966, 1066, 1209, 1271, 1302, 1426, 1599, 1722, 1794, 1886, 2093, 2139, 2418, 2542, 2821, 2829, 3198, 3731, 3813, 4186, 4278, 4991, 5642, 5658, 6279, 6601, 7462, 7626, 8463, 8897, 9269, 9982, 11193, 12259, 12558, 13202, 14973, 16523, 16926, 17794, 18538, 19803, 22386, 24518, 26691, 27807, 29233, 29946, 33046, 36777, 39606, 49569, 53382, 55614, 58466, 64883, 73554, 85813, 87699, 99138, 115661, 129766, 171626, 175398, 194649, 204631, 231322, 257439, 346983, 380029, 389298, 409262, 514878, 613893, 693966, 760058, 1140087, 1227786, 2280174, 2660203, 5320406, 7980609, 15961218]

約数ペア:

[(1, 15961218), (2, 7980609), (3, 5320406), (6, 2660203), (7, 2280174), (13, 1227786), (14, 1140087), (21, 760058), (23, 693966), (26, 613893), (31, 514878), (39, 409262), (41, 389298), (42, 380029), (46, 346983), (62, 257439), (69, 231322), (78, 204631), (82, 194649), (91, 175398), (93, 171626), (123, 129766), (138, 115661), (161, 99138), (182, 87699), (186, 85813), (217, 73554), (246, 64883), (273, 58466), (287, 55614), (299, 53382), (322, 49569), (403, 39606), (434, 36777), (483, 33046), (533, 29946), (546, 29233), (574, 27807), (598, 26691), (651, 24518), (713, 22386), (806, 19803), (861, 18538), (897, 17794), (943, 16926), (966, 16523), (1066, 14973), (1209, 13202), (1271, 12558), (1302, 12259), (1426, 11193), (1599, 9982), (1722, 9269), (1794, 8897), (1886, 8463), (2093, 7626), (2139, 7462), (2418, 6601), (2542, 6279), (2821, 5658), (2829, 5642), (3198, 4991), (3731, 4278), (3813, 4186)]