20874453

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 9970347

約数列:

[1, 3, 17, 41, 51, 67, 123, 149, 201, 447, 697, 1139, 2091, 2533, 2747, 3417, 6109, 7599, 8241, 9983, 18327, 29949, 46699, 103853, 140097, 169711, 311559, 409303, 509133, 1227909, 6958151, 20874453]

約数ペア:

[(1, 20874453), (3, 6958151), (17, 1227909), (41, 509133), (51, 409303), (67, 311559), (123, 169711), (149, 140097), (201, 103853), (447, 46699), (697, 29949), (1139, 18327), (2091, 9983), (2533, 8241), (2747, 7599), (3417, 6109)]