21377106

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 48185280

約数和(自身を除く): 26808174

約数列:

[1, 2, 3, 6, 9, 18, 43, 71, 86, 129, 142, 213, 258, 387, 389, 426, 639, 774, 778, 1167, 1278, 2334, 3053, 3501, 6106, 7002, 9159, 16727, 18318, 27477, 27619, 33454, 50181, 54954, 55238, 82857, 100362, 150543, 165714, 248571, 301086, 497142, 1187617, 2375234, 3562851, 7125702, 10688553, 21377106]

約数ペア:

[(1, 21377106), (2, 10688553), (3, 7125702), (6, 3562851), (9, 2375234), (18, 1187617), (43, 497142), (71, 301086), (86, 248571), (129, 165714), (142, 150543), (213, 100362), (258, 82857), (387, 55238), (389, 54954), (426, 50181), (639, 33454), (774, 27619), (778, 27477), (1167, 18318), (1278, 16727), (2334, 9159), (3053, 7002), (3501, 6106)]