21492796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 42649600

約数和(自身を除く): 21156804

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 67, 124, 134, 199, 268, 398, 403, 796, 806, 871, 1612, 1742, 2077, 2587, 3484, 4154, 5174, 6169, 8308, 10348, 12338, 13333, 24676, 26666, 27001, 53332, 54002, 80197, 108004, 160394, 173329, 320788, 346658, 413323, 693316, 826646, 1653292, 5373199, 10746398, 21492796]

約数ペア:

[(1, 21492796), (2, 10746398), (4, 5373199), (13, 1653292), (26, 826646), (31, 693316), (52, 413323), (62, 346658), (67, 320788), (124, 173329), (134, 160394), (199, 108004), (268, 80197), (398, 54002), (403, 53332), (796, 27001), (806, 26666), (871, 24676), (1612, 13333), (1742, 12338), (2077, 10348), (2587, 8308), (3484, 6169), (4154, 5174)]