18151028

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 37801344

約数和(自身を除く): 19650316

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 97, 163, 164, 194, 287, 326, 388, 574, 652, 679, 1141, 1148, 1358, 2282, 2716, 3977, 4564, 6683, 7954, 13366, 15811, 15908, 26732, 27839, 31622, 46781, 55678, 63244, 93562, 110677, 111356, 187124, 221354, 442708, 648251, 1296502, 2593004, 4537757, 9075514, 18151028]

約数ペア:

[(1, 18151028), (2, 9075514), (4, 4537757), (7, 2593004), (14, 1296502), (28, 648251), (41, 442708), (82, 221354), (97, 187124), (163, 111356), (164, 110677), (194, 93562), (287, 63244), (326, 55678), (388, 46781), (574, 31622), (652, 27839), (679, 26732), (1141, 15908), (1148, 15811), (1358, 13366), (2282, 7954), (2716, 6683), (3977, 4564)]