221781364

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1\times {\mathrm{661}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 464438016

約数和(自身を除く): 242656652

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 521, 644, 661, 1042, 1322, 2084, 2644, 3647, 4627, 7294, 9254, 11983, 14588, 15203, 18508, 23966, 30406, 47932, 60812, 83881, 106421, 167762, 212842, 335524, 344381, 425684, 688762, 1377524, 2410667, 4821334, 7920763, 9642668, 15841526, 31683052, 55445341, 110890682, 221781364]

約数ペア:

[(1, 221781364), (2, 110890682), (4, 55445341), (7, 31683052), (14, 15841526), (23, 9642668), (28, 7920763), (46, 4821334), (92, 2410667), (161, 1377524), (322, 688762), (521, 425684), (644, 344381), (661, 335524), (1042, 212842), (1322, 167762), (2084, 106421), (2644, 83881), (3647, 60812), (4627, 47932), (7294, 30406), (9254, 23966), (11983, 18508), (14588, 15203)]