18108688

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 60

約数和(自身を含む): 39234468

約数和(自身を除く): 21125780

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 169, 181, 208, 296, 338, 362, 481, 592, 676, 724, 962, 1352, 1448, 1924, 2353, 2704, 2896, 3848, 4706, 6253, 6697, 7696, 9412, 12506, 13394, 18824, 25012, 26788, 30589, 37648, 50024, 53576, 61178, 87061, 100048, 107152, 122356, 174122, 244712, 348244, 489424, 696488, 1131793, 1392976, 2263586, 4527172, 9054344, 18108688]

約数ペア:

[(1, 18108688), (2, 9054344), (4, 4527172), (8, 2263586), (13, 1392976), (16, 1131793), (26, 696488), (37, 489424), (52, 348244), (74, 244712), (104, 174122), (148, 122356), (169, 107152), (181, 100048), (208, 87061), (296, 61178), (338, 53576), (362, 50024), (481, 37648), (592, 30589), (676, 26788), (724, 25012), (962, 18824), (1352, 13394), (1448, 12506), (1924, 9412), (2353, 7696), (2704, 6697), (2896, 6253), (3848, 4706)]