21388812

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{719}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 52093440

約数和(自身を除く): 30704628

約数列:

[1, 2, 3, 4, 6, 12, 37, 67, 74, 111, 134, 148, 201, 222, 268, 402, 444, 719, 804, 1438, 2157, 2479, 2876, 4314, 4958, 7437, 8628, 9916, 14874, 26603, 29748, 48173, 53206, 79809, 96346, 106412, 144519, 159618, 192692, 289038, 319236, 578076, 1782401, 3564802, 5347203, 7129604, 10694406, 21388812]

約数ペア:

[(1, 21388812), (2, 10694406), (3, 7129604), (4, 5347203), (6, 3564802), (12, 1782401), (37, 578076), (67, 319236), (74, 289038), (111, 192692), (134, 159618), (148, 144519), (201, 106412), (222, 96346), (268, 79809), (402, 53206), (444, 48173), (719, 29748), (804, 26603), (1438, 14874), (2157, 9916), (2479, 8628), (2876, 7437), (4314, 4958)]