21497932012

素因数分解:

$2^2\times {\mathrm{17}}^3\times {\mathrm{101}}^1\times {\mathrm{10831}}^1$

素因数の和:10987

約数の個数: 48

約数和(自身を含む): 40371730560

約数和(自身を除く): 18873798548

約数列:

[1, 2, 4, 17, 34, 68, 101, 202, 289, 404, 578, 1156, 1717, 3434, 4913, 6868, 9826, 10831, 19652, 21662, 29189, 43324, 58378, 116756, 184127, 368254, 496213, 736508, 992426, 1093931, 1984852, 2187862, 3130159, 4375724, 6260318, 12520636, 18596827, 37193654, 53212703, 74387308, 106425406, 212850812, 316146059, 632292118, 1264584236, 5374483003, 10748966006, 21497932012]

約数ペア:

[(1, 21497932012), (2, 10748966006), (4, 5374483003), (17, 1264584236), (34, 632292118), (68, 316146059), (101, 212850812), (202, 106425406), (289, 74387308), (404, 53212703), (578, 37193654), (1156, 18596827), (1717, 12520636), (3434, 6260318), (4913, 4375724), (6868, 3130159), (9826, 2187862), (10831, 1984852), (19652, 1093931), (21662, 992426), (29189, 736508), (43324, 496213), (58378, 368254), (116756, 184127)]