21644975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2539}}^1$

素因数の和:2591

約数の個数: 24

約数和(自身を含む): 30236160

約数和(自身を除く): 8591185

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 2539, 8525, 12695, 27929, 63475, 78709, 139645, 393545, 698225, 865799, 1967725, 4328995, 21644975]

約数ペア:

[(1, 21644975), (5, 4328995), (11, 1967725), (25, 865799), (31, 698225), (55, 393545), (155, 139645), (275, 78709), (341, 63475), (775, 27929), (1705, 12695), (2539, 8525)]