21020784

素因数分解:

$2^4\times 3^1\times {\mathrm{131}}^1\times {\mathrm{3343}}^1$

素因数の和:3485

約数の個数: 40

約数和(自身を含む): 54734592

約数和(自身を除く): 33713808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 131, 262, 393, 524, 786, 1048, 1572, 2096, 3144, 3343, 6288, 6686, 10029, 13372, 20058, 26744, 40116, 53488, 80232, 160464, 437933, 875866, 1313799, 1751732, 2627598, 3503464, 5255196, 7006928, 10510392, 21020784]

約数ペア:

[(1, 21020784), (2, 10510392), (3, 7006928), (4, 5255196), (6, 3503464), (8, 2627598), (12, 1751732), (16, 1313799), (24, 875866), (48, 437933), (131, 160464), (262, 80232), (393, 53488), (524, 40116), (786, 26744), (1048, 20058), (1572, 13372), (2096, 10029), (3144, 6686), (3343, 6288)]