21713360

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{4051}}^1$

素因数の和:4131

約数の個数: 40

約数和(自身を含む): 51249696

約数和(自身を除く): 29536336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 4051, 5360, 8102, 16204, 20255, 32408, 40510, 64816, 81020, 162040, 271417, 324080, 542834, 1085668, 1357085, 2171336, 2714170, 4342672, 5428340, 10856680, 21713360]

約数ペア:

[(1, 21713360), (2, 10856680), (4, 5428340), (5, 4342672), (8, 2714170), (10, 2171336), (16, 1357085), (20, 1085668), (40, 542834), (67, 324080), (80, 271417), (134, 162040), (268, 81020), (335, 64816), (536, 40510), (670, 32408), (1072, 20255), (1340, 16204), (2680, 8102), (4051, 5360)]