221567390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 449729280

約数和(自身を除く): 228161890

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 139, 215, 278, 337, 430, 473, 674, 695, 946, 1390, 1529, 1685, 2365, 3058, 3370, 3707, 4730, 5977, 7414, 7645, 11954, 14491, 15290, 18535, 28982, 29885, 37070, 46843, 59770, 65747, 72455, 93686, 131494, 144910, 159401, 234215, 318802, 328735, 468430, 515273, 657470, 797005, 1030546, 1594010, 2014249, 2576365, 4028498, 5152730, 10071245, 20142490, 22156739, 44313478, 110783695, 221567390]

約数ペア:

[(1, 221567390), (2, 110783695), (5, 44313478), (10, 22156739), (11, 20142490), (22, 10071245), (43, 5152730), (55, 4028498), (86, 2576365), (110, 2014249), (139, 1594010), (215, 1030546), (278, 797005), (337, 657470), (430, 515273), (473, 468430), (674, 328735), (695, 318802), (946, 234215), (1390, 159401), (1529, 144910), (1685, 131494), (2365, 93686), (3058, 72455), (3370, 65747), (3707, 59770), (4730, 46843), (5977, 37070), (7414, 29885), (7645, 28982), (11954, 18535), (14491, 15290)]