21413528

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{991}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 41842560

約数和(自身を除く): 20429032

約数列:

[1, 2, 4, 8, 37, 73, 74, 146, 148, 292, 296, 584, 991, 1982, 2701, 3964, 5402, 7928, 10804, 21608, 36667, 72343, 73334, 144686, 146668, 289372, 293336, 578744, 2676691, 5353382, 10706764, 21413528]

約数ペア:

[(1, 21413528), (2, 10706764), (4, 5353382), (8, 2676691), (37, 578744), (73, 293336), (74, 289372), (146, 146668), (148, 144686), (292, 73334), (296, 72343), (584, 36667), (991, 21608), (1982, 10804), (2701, 7928), (3964, 5402)]