216181072

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{221497}}^1$

素因数の和:221566

約数の個数: 20

約数和(自身を含む): 425719156

約数和(自身を除く): 209538084

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 221497, 442994, 885988, 1771976, 3543952, 13511317, 27022634, 54045268, 108090536, 216181072]

約数ペア:

[(1, 216181072), (2, 108090536), (4, 54045268), (8, 27022634), (16, 13511317), (61, 3543952), (122, 1771976), (244, 885988), (488, 442994), (976, 221497)]