21561402

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 22468038

約数列:

[1, 2, 3, 6, 103, 139, 206, 251, 278, 309, 417, 502, 618, 753, 834, 1506, 14317, 25853, 28634, 34889, 42951, 51706, 69778, 77559, 85902, 104667, 155118, 209334, 3593567, 7187134, 10780701, 21561402]

約数ペア:

[(1, 21561402), (2, 10780701), (3, 7187134), (6, 3593567), (103, 209334), (139, 155118), (206, 104667), (251, 85902), (278, 77559), (309, 69778), (417, 51706), (502, 42951), (618, 34889), (753, 28634), (834, 25853), (1506, 14317)]