21501238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{503}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 15512522

約数列:

[1, 2, 11, 22, 29, 58, 67, 134, 319, 503, 638, 737, 1006, 1474, 1943, 3886, 5533, 11066, 14587, 21373, 29174, 33701, 42746, 67402, 160457, 320914, 370711, 741422, 977329, 1954658, 10750619, 21501238]

約数ペア:

[(1, 21501238), (2, 10750619), (11, 1954658), (22, 977329), (29, 741422), (58, 370711), (67, 320914), (134, 160457), (319, 67402), (503, 42746), (638, 33701), (737, 29174), (1006, 21373), (1474, 14587), (1943, 11066), (3886, 5533)]