21028386

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 43390080

約数和(自身を除く): 22361694

約数列:

[1, 2, 3, 6, 53, 89, 106, 159, 178, 267, 318, 534, 743, 1486, 2229, 4458, 4717, 9434, 14151, 28302, 39379, 66127, 78758, 118137, 132254, 198381, 236274, 396762, 3504731, 7009462, 10514193, 21028386]

約数ペア:

[(1, 21028386), (2, 10514193), (3, 7009462), (6, 3504731), (53, 396762), (89, 236274), (106, 198381), (159, 132254), (178, 118137), (267, 78758), (318, 66127), (534, 39379), (743, 28302), (1486, 14151), (2229, 9434), (4458, 4717)]