1851976191

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^3\times {\mathrm{53}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 2792416032

約数和(自身を除く): 940439841

約数列:

[1, 3, 13, 39, 41, 53, 123, 159, 169, 507, 533, 689, 1599, 1681, 2067, 2173, 5043, 6519, 6929, 8957, 20787, 21853, 26871, 28249, 65559, 68921, 84747, 89093, 206763, 267279, 284089, 367237, 852267, 895973, 1101711, 1158209, 2687919, 3474627, 3652813, 10958439, 11647649, 15056717, 34942947, 45170151, 47486569, 142459707, 617325397, 1851976191]

約数ペア:

[(1, 1851976191), (3, 617325397), (13, 142459707), (39, 47486569), (41, 45170151), (53, 34942947), (123, 15056717), (159, 11647649), (169, 10958439), (507, 3652813), (533, 3474627), (689, 2687919), (1599, 1158209), (1681, 1101711), (2067, 895973), (2173, 852267), (5043, 367237), (6519, 284089), (6929, 267279), (8957, 206763), (20787, 89093), (21853, 84747), (26871, 68921), (28249, 65559)]