21231816

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{461}}^1$

素因数の和:590

約数の個数: 64

約数和(自身を含む): 56548800

約数和(自身を除く): 35316984

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 101, 114, 152, 202, 228, 303, 404, 456, 461, 606, 808, 922, 1212, 1383, 1844, 1919, 2424, 2766, 3688, 3838, 5532, 5757, 7676, 8759, 11064, 11514, 15352, 17518, 23028, 26277, 35036, 46056, 46561, 52554, 70072, 93122, 105108, 139683, 186244, 210216, 279366, 372488, 558732, 884659, 1117464, 1769318, 2653977, 3538636, 5307954, 7077272, 10615908, 21231816]

約数ペア:

[(1, 21231816), (2, 10615908), (3, 7077272), (4, 5307954), (6, 3538636), (8, 2653977), (12, 1769318), (19, 1117464), (24, 884659), (38, 558732), (57, 372488), (76, 279366), (101, 210216), (114, 186244), (152, 139683), (202, 105108), (228, 93122), (303, 70072), (404, 52554), (456, 46561), (461, 46056), (606, 35036), (808, 26277), (922, 23028), (1212, 17518), (1383, 15352), (1844, 11514), (1919, 11064), (2424, 8759), (2766, 7676), (3688, 5757), (3838, 5532)]