20974392

素因数分解:

$2^3\times 3^2\times {\mathrm{523}}^1\times {\mathrm{557}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 57016440

約数和(自身を除く): 36042048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 523, 557, 1046, 1114, 1569, 1671, 2092, 2228, 3138, 3342, 4184, 4456, 4707, 5013, 6276, 6684, 9414, 10026, 12552, 13368, 18828, 20052, 37656, 40104, 291311, 582622, 873933, 1165244, 1747866, 2330488, 2621799, 3495732, 5243598, 6991464, 10487196, 20974392]

約数ペア:

[(1, 20974392), (2, 10487196), (3, 6991464), (4, 5243598), (6, 3495732), (8, 2621799), (9, 2330488), (12, 1747866), (18, 1165244), (24, 873933), (36, 582622), (72, 291311), (523, 40104), (557, 37656), (1046, 20052), (1114, 18828), (1569, 13368), (1671, 12552), (2092, 10026), (2228, 9414), (3138, 6684), (3342, 6276), (4184, 5013), (4456, 4707)]