21977946

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 53145600

約数和(自身を除く): 31167654

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 54, 57, 62, 93, 114, 171, 186, 279, 342, 513, 558, 589, 691, 837, 1026, 1178, 1382, 1674, 1767, 2073, 3534, 4146, 5301, 6219, 10602, 12438, 13129, 15903, 18657, 21421, 26258, 31806, 37314, 39387, 42842, 64263, 78774, 118161, 128526, 192789, 236322, 354483, 385578, 406999, 578367, 708966, 813998, 1156734, 1220997, 2441994, 3662991, 7325982, 10988973, 21977946]

約数ペア:

[(1, 21977946), (2, 10988973), (3, 7325982), (6, 3662991), (9, 2441994), (18, 1220997), (19, 1156734), (27, 813998), (31, 708966), (38, 578367), (54, 406999), (57, 385578), (62, 354483), (93, 236322), (114, 192789), (171, 128526), (186, 118161), (279, 78774), (342, 64263), (513, 42842), (558, 39387), (589, 37314), (691, 31806), (837, 26258), (1026, 21421), (1178, 18657), (1382, 15903), (1674, 13129), (1767, 12438), (2073, 10602), (3534, 6219), (4146, 5301)]