21902895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2243}}^1$

素因数の和:2292

約数の個数: 48

約数和(自身を含む): 44808192

約数和(自身を除く): 22905297

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2243, 3255, 6729, 9765, 11215, 15701, 20187, 33645, 47103, 69533, 78505, 100935, 141309, 208599, 235515, 347665, 486731, 625797, 706545, 1042995, 1460193, 2433655, 3128985, 4380579, 7300965, 21902895]

約数ペア:

[(1, 21902895), (3, 7300965), (5, 4380579), (7, 3128985), (9, 2433655), (15, 1460193), (21, 1042995), (31, 706545), (35, 625797), (45, 486731), (63, 347665), (93, 235515), (105, 208599), (155, 141309), (217, 100935), (279, 78505), (315, 69533), (465, 47103), (651, 33645), (1085, 20187), (1395, 15701), (1953, 11215), (2243, 9765), (3255, 6729)]