15986978

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 12905182

約数列:

[1, 2, 7, 14, 23, 46, 131, 161, 262, 322, 379, 758, 917, 1834, 2653, 3013, 5306, 6026, 8717, 17434, 21091, 42182, 49649, 61019, 99298, 122038, 347543, 695086, 1141927, 2283854, 7993489, 15986978]

約数ペア:

[(1, 15986978), (2, 7993489), (7, 2283854), (14, 1141927), (23, 695086), (46, 347543), (131, 122038), (161, 99298), (262, 61019), (322, 49649), (379, 42182), (758, 21091), (917, 17434), (1834, 8717), (2653, 6026), (3013, 5306)]