21907638

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 30623562

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 31, 46, 54, 62, 69, 93, 138, 186, 207, 279, 414, 558, 569, 621, 713, 837, 1138, 1242, 1426, 1674, 1707, 2139, 3414, 4278, 5121, 6417, 10242, 12834, 13087, 15363, 17639, 19251, 26174, 30726, 35278, 38502, 39261, 52917, 78522, 105834, 117783, 158751, 235566, 317502, 353349, 405697, 476253, 706698, 811394, 952506, 1217091, 2434182, 3651273, 7302546, 10953819, 21907638]

約数ペア:

[(1, 21907638), (2, 10953819), (3, 7302546), (6, 3651273), (9, 2434182), (18, 1217091), (23, 952506), (27, 811394), (31, 706698), (46, 476253), (54, 405697), (62, 353349), (69, 317502), (93, 235566), (138, 158751), (186, 117783), (207, 105834), (279, 78522), (414, 52917), (558, 39261), (569, 38502), (621, 35278), (713, 30726), (837, 26174), (1138, 19251), (1242, 17639), (1426, 15363), (1674, 13087), (1707, 12834), (2139, 10242), (3414, 6417), (4278, 5121)]