21105648

素因数分解:

$2^4\times 3^2\times {\mathrm{97}}^1\times {\mathrm{1511}}^1$

素因数の和:1622

約数の個数: 60

約数和(自身を含む): 59714928

約数和(自身を除く): 38609280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 97, 144, 194, 291, 388, 582, 776, 873, 1164, 1511, 1552, 1746, 2328, 3022, 3492, 4533, 4656, 6044, 6984, 9066, 12088, 13599, 13968, 18132, 24176, 27198, 36264, 54396, 72528, 108792, 146567, 217584, 293134, 439701, 586268, 879402, 1172536, 1319103, 1758804, 2345072, 2638206, 3517608, 5276412, 7035216, 10552824, 21105648]

約数ペア:

[(1, 21105648), (2, 10552824), (3, 7035216), (4, 5276412), (6, 3517608), (8, 2638206), (9, 2345072), (12, 1758804), (16, 1319103), (18, 1172536), (24, 879402), (36, 586268), (48, 439701), (72, 293134), (97, 217584), (144, 146567), (194, 108792), (291, 72528), (388, 54396), (582, 36264), (776, 27198), (873, 24176), (1164, 18132), (1511, 13968), (1552, 13599), (1746, 12088), (2328, 9066), (3022, 6984), (3492, 6044), (4533, 4656)]