21139998711

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1\times {\mathrm{26317}}^1$

素因数の和:26855

約数の個数: 32

約数和(自身を含む): 31126824960

約数和(自身を除く): 9986826249

約数列:

[1, 3, 13, 39, 43, 129, 479, 559, 1437, 1677, 6227, 18681, 20597, 26317, 61791, 78951, 267761, 342121, 803283, 1026363, 1131631, 3394893, 12605843, 14711203, 37817529, 44133609, 163875959, 491627877, 542051249, 1626153747, 7046666237, 21139998711]

約数ペア:

[(1, 21139998711), (3, 7046666237), (13, 1626153747), (39, 542051249), (43, 491627877), (129, 163875959), (479, 44133609), (559, 37817529), (1437, 14711203), (1677, 12605843), (6227, 3394893), (18681, 1131631), (20597, 1026363), (26317, 803283), (61791, 342121), (78951, 267761)]