21538530072

素因数分解:

$2^3\times 3^3\times {\mathrm{151}}^1\times {\mathrm{660367}}^1$

素因数の和:660533

約数の個数: 64

約数和(自身を含む): 60225561600

約数和(自身を除く): 38687031528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 151, 216, 302, 453, 604, 906, 1208, 1359, 1812, 2718, 3624, 4077, 5436, 8154, 10872, 16308, 32616, 660367, 1320734, 1981101, 2641468, 3962202, 5282936, 5943303, 7924404, 11886606, 15848808, 17829909, 23773212, 35659818, 47546424, 71319636, 99715417, 142639272, 199430834, 299146251, 398861668, 598292502, 797723336, 897438753, 1196585004, 1794877506, 2393170008, 2692316259, 3589755012, 5384632518, 7179510024, 10769265036, 21538530072]

約数ペア:

[(1, 21538530072), (2, 10769265036), (3, 7179510024), (4, 5384632518), (6, 3589755012), (8, 2692316259), (9, 2393170008), (12, 1794877506), (18, 1196585004), (24, 897438753), (27, 797723336), (36, 598292502), (54, 398861668), (72, 299146251), (108, 199430834), (151, 142639272), (216, 99715417), (302, 71319636), (453, 47546424), (604, 35659818), (906, 23773212), (1208, 17829909), (1359, 15848808), (1812, 11886606), (2718, 7924404), (3624, 5943303), (4077, 5282936), (5436, 3962202), (8154, 2641468), (10872, 1981101), (16308, 1320734), (32616, 660367)]