19157985

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:148

約数の個数: 128

約数和(自身を含む): 45158400

約数和(自身を除く): 26000415

約数列:

[1, 3, 5, 7, 9, 11, 15, 19, 21, 27, 33, 35, 45, 55, 57, 63, 77, 95, 97, 99, 105, 133, 135, 165, 171, 189, 209, 231, 285, 291, 297, 315, 385, 399, 485, 495, 513, 627, 665, 679, 693, 855, 873, 945, 1045, 1067, 1155, 1197, 1455, 1463, 1485, 1843, 1881, 1995, 2037, 2079, 2565, 2619, 3135, 3201, 3395, 3465, 3591, 4365, 4389, 5335, 5529, 5643, 5985, 6111, 7315, 7469, 9215, 9405, 9603, 10185, 10395, 12901, 13095, 13167, 16005, 16587, 17955, 18333, 20273, 21945, 22407, 27645, 28215, 28809, 30555, 37345, 38703, 39501, 48015, 49761, 60819, 64505, 65835, 67221, 82935, 91665, 101365, 112035, 116109, 141911, 144045, 182457, 193515, 197505, 201663, 248805, 304095, 336105, 348327, 425733, 547371, 580545, 709555, 912285, 1008315, 1277199, 1741635, 2128665, 2736855, 3831597, 6385995, 19157985]

約数ペア:

[(1, 19157985), (3, 6385995), (5, 3831597), (7, 2736855), (9, 2128665), (11, 1741635), (15, 1277199), (19, 1008315), (21, 912285), (27, 709555), (33, 580545), (35, 547371), (45, 425733), (55, 348327), (57, 336105), (63, 304095), (77, 248805), (95, 201663), (97, 197505), (99, 193515), (105, 182457), (133, 144045), (135, 141911), (165, 116109), (171, 112035), (189, 101365), (209, 91665), (231, 82935), (285, 67221), (291, 65835), (297, 64505), (315, 60819), (385, 49761), (399, 48015), (485, 39501), (495, 38703), (513, 37345), (627, 30555), (665, 28809), (679, 28215), (693, 27645), (855, 22407), (873, 21945), (945, 20273), (1045, 18333), (1067, 17955), (1155, 16587), (1197, 16005), (1455, 13167), (1463, 13095), (1485, 12901), (1843, 10395), (1881, 10185), (1995, 9603), (2037, 9405), (2079, 9215), (2565, 7469), (2619, 7315), (3135, 6111), (3201, 5985), (3395, 5643), (3465, 5529), (3591, 5335), (4365, 4389)]