20369492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21966508

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 149, 239, 286, 298, 478, 572, 596, 956, 1639, 1937, 2629, 3107, 3278, 3874, 5258, 6214, 6556, 7748, 10516, 12428, 21307, 34177, 35611, 42614, 68354, 71222, 85228, 136708, 142444, 391721, 462943, 783442, 925886, 1566884, 1851772, 5092373, 10184746, 20369492]

約数ペア:

[(1, 20369492), (2, 10184746), (4, 5092373), (11, 1851772), (13, 1566884), (22, 925886), (26, 783442), (44, 462943), (52, 391721), (143, 142444), (149, 136708), (239, 85228), (286, 71222), (298, 68354), (478, 42614), (572, 35611), (596, 34177), (956, 21307), (1639, 12428), (1937, 10516), (2629, 7748), (3107, 6556), (3278, 6214), (3874, 5258)]