21557046

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 29591754

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 79, 89, 146, 158, 178, 219, 237, 267, 438, 474, 511, 534, 553, 623, 1022, 1106, 1246, 1533, 1659, 1869, 3066, 3318, 3738, 5767, 6497, 7031, 11534, 12994, 14062, 17301, 19491, 21093, 34602, 38982, 40369, 42186, 45479, 49217, 80738, 90958, 98434, 121107, 136437, 147651, 242214, 272874, 295302, 513263, 1026526, 1539789, 3079578, 3592841, 7185682, 10778523, 21557046]

約数ペア:

[(1, 21557046), (2, 10778523), (3, 7185682), (6, 3592841), (7, 3079578), (14, 1539789), (21, 1026526), (42, 513263), (73, 295302), (79, 272874), (89, 242214), (146, 147651), (158, 136437), (178, 121107), (219, 98434), (237, 90958), (267, 80738), (438, 49217), (474, 45479), (511, 42186), (534, 40369), (553, 38982), (623, 34602), (1022, 21093), (1106, 19491), (1246, 17301), (1533, 14062), (1659, 12994), (1869, 11534), (3066, 7031), (3318, 6497), (3738, 5767)]