21005532

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^2\times {\mathrm{1103}}^1$

素因数の和:1159

約数の個数: 54

約数和(自身を含む): 55556592

約数和(自身を除く): 34551060

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 529, 828, 1058, 1103, 1587, 2116, 2206, 3174, 3309, 4412, 4761, 6348, 6618, 9522, 9927, 13236, 19044, 19854, 25369, 39708, 50738, 76107, 101476, 152214, 228321, 304428, 456642, 583487, 913284, 1166974, 1750461, 2333948, 3500922, 5251383, 7001844, 10502766, 21005532]

約数ペア:

[(1, 21005532), (2, 10502766), (3, 7001844), (4, 5251383), (6, 3500922), (9, 2333948), (12, 1750461), (18, 1166974), (23, 913284), (36, 583487), (46, 456642), (69, 304428), (92, 228321), (138, 152214), (207, 101476), (276, 76107), (414, 50738), (529, 39708), (828, 25369), (1058, 19854), (1103, 19044), (1587, 13236), (2116, 9927), (2206, 9522), (3174, 6618), (3309, 6348), (4412, 4761)]