21167301160

素因数分解:

$2^3\times 5^1\times {\mathrm{9511}}^1\times {\mathrm{55639}}^1$

素因数の和:65161

約数の個数: 32

約数和(自身を含む): 47632291200

約数和(自身を除く): 26464990040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9511, 19022, 38044, 47555, 55639, 76088, 95110, 111278, 190220, 222556, 278195, 380440, 445112, 556390, 1112780, 2225560, 529182529, 1058365058, 2116730116, 2645912645, 4233460232, 5291825290, 10583650580, 21167301160]

約数ペア:

[(1, 21167301160), (2, 10583650580), (4, 5291825290), (5, 4233460232), (8, 2645912645), (10, 2116730116), (20, 1058365058), (40, 529182529), (9511, 2225560), (19022, 1112780), (38044, 556390), (47555, 445112), (55639, 380440), (76088, 278195), (95110, 222556), (111278, 190220)]