21041530

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1$

素因数の和:163

約数の個数: 48

約数和(自身を含む): 41028120

約数和(自身を除く): 19986590

約数列:

[1, 2, 5, 10, 29, 37, 53, 58, 74, 106, 145, 185, 265, 290, 370, 530, 1073, 1369, 1537, 1961, 2146, 2738, 3074, 3922, 5365, 6845, 7685, 9805, 10730, 13690, 15370, 19610, 39701, 56869, 72557, 79402, 113738, 145114, 198505, 284345, 362785, 397010, 568690, 725570, 2104153, 4208306, 10520765, 21041530]

約数ペア:

[(1, 21041530), (2, 10520765), (5, 4208306), (10, 2104153), (29, 725570), (37, 568690), (53, 397010), (58, 362785), (74, 284345), (106, 198505), (145, 145114), (185, 113738), (265, 79402), (290, 72557), (370, 56869), (530, 39701), (1073, 19610), (1369, 15370), (1537, 13690), (1961, 10730), (2146, 9805), (2738, 7685), (3074, 6845), (3922, 5365)]