21102584

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 40778640

約数和(自身を除く): 19676056

約数列:

[1, 2, 4, 8, 61, 83, 122, 166, 244, 332, 488, 521, 664, 1042, 2084, 4168, 5063, 10126, 20252, 31781, 40504, 43243, 63562, 86486, 127124, 172972, 254248, 345944, 2637823, 5275646, 10551292, 21102584]

約数ペア:

[(1, 21102584), (2, 10551292), (4, 5275646), (8, 2637823), (61, 345944), (83, 254248), (122, 172972), (166, 127124), (244, 86486), (332, 63562), (488, 43243), (521, 40504), (664, 31781), (1042, 20252), (2084, 10126), (4168, 5063)]