21366990

素因数分解:

$2^1\times 3^7\times 5^1\times {\mathrm{977}}^1$

素因数の和:1005

約数の個数: 64

約数和(自身を含む): 57741120

約数和(自身を除く): 36374130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 977, 1215, 1458, 1954, 2187, 2430, 2931, 3645, 4374, 4885, 5862, 7290, 8793, 9770, 10935, 14655, 17586, 21870, 26379, 29310, 43965, 52758, 79137, 87930, 131895, 158274, 237411, 263790, 395685, 474822, 712233, 791370, 1187055, 1424466, 2136699, 2374110, 3561165, 4273398, 7122330, 10683495, 21366990]

約数ペア:

[(1, 21366990), (2, 10683495), (3, 7122330), (5, 4273398), (6, 3561165), (9, 2374110), (10, 2136699), (15, 1424466), (18, 1187055), (27, 791370), (30, 712233), (45, 474822), (54, 395685), (81, 263790), (90, 237411), (135, 158274), (162, 131895), (243, 87930), (270, 79137), (405, 52758), (486, 43965), (729, 29310), (810, 26379), (977, 21870), (1215, 17586), (1458, 14655), (1954, 10935), (2187, 9770), (2430, 8793), (2931, 7290), (3645, 5862), (4374, 4885)]