18257295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 35389440

約数和(自身を除く): 17132145

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 71, 79, 93, 105, 155, 213, 217, 237, 355, 395, 465, 497, 553, 651, 1065, 1085, 1185, 1491, 1659, 2201, 2449, 2485, 2765, 3255, 5609, 6603, 7347, 7455, 8295, 11005, 12245, 15407, 16827, 17143, 28045, 33015, 36735, 39263, 46221, 51429, 77035, 84135, 85715, 117789, 173879, 196315, 231105, 257145, 521637, 588945, 869395, 1217153, 2608185, 3651459, 6085765, 18257295]

約数ペア:

[(1, 18257295), (3, 6085765), (5, 3651459), (7, 2608185), (15, 1217153), (21, 869395), (31, 588945), (35, 521637), (71, 257145), (79, 231105), (93, 196315), (105, 173879), (155, 117789), (213, 85715), (217, 84135), (237, 77035), (355, 51429), (395, 46221), (465, 39263), (497, 36735), (553, 33015), (651, 28045), (1065, 17143), (1085, 16827), (1185, 15407), (1491, 12245), (1659, 11005), (2201, 8295), (2449, 7455), (2485, 7347), (2765, 6603), (3255, 5609)]