17981028

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1423}}^1$

素因数の和:1455

約数の個数: 72

約数和(自身を含む): 50796928

約数和(自身を除く): 32815900

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1423, 2106, 2846, 3159, 4212, 4269, 5692, 6318, 8538, 12636, 12807, 17076, 18499, 25614, 36998, 38421, 51228, 55497, 73996, 76842, 110994, 115263, 153684, 166491, 221988, 230526, 332982, 345789, 461052, 499473, 665964, 691578, 998946, 1383156, 1498419, 1997892, 2996838, 4495257, 5993676, 8990514, 17981028]

約数ペア:

[(1, 17981028), (2, 8990514), (3, 5993676), (4, 4495257), (6, 2996838), (9, 1997892), (12, 1498419), (13, 1383156), (18, 998946), (26, 691578), (27, 665964), (36, 499473), (39, 461052), (52, 345789), (54, 332982), (78, 230526), (81, 221988), (108, 166491), (117, 153684), (156, 115263), (162, 110994), (234, 76842), (243, 73996), (324, 55497), (351, 51228), (468, 38421), (486, 36998), (702, 25614), (972, 18499), (1053, 17076), (1404, 12807), (1423, 12636), (2106, 8538), (2846, 6318), (3159, 5692), (4212, 4269)]