21000798742

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{5113}}^1$

素因数の和:5461

約数の個数: 64

約数和(自身を含む): 39766464000

約数和(自身を除く): 18765665258

約数列:

[1, 2, 7, 11, 14, 22, 77, 149, 154, 179, 298, 358, 1043, 1253, 1639, 1969, 2086, 2506, 3278, 3938, 5113, 10226, 11473, 13783, 22946, 26671, 27566, 35791, 53342, 56243, 71582, 112486, 186697, 293381, 373394, 393701, 586762, 761837, 787402, 915227, 1523674, 1830454, 2053667, 4107334, 5332859, 6406589, 8380207, 10067497, 10665718, 12813178, 16760414, 20134994, 58661449, 70472479, 117322898, 136368823, 140944958, 272737646, 954581761, 1500057053, 1909163522, 3000114106, 10500399371, 21000798742]

約数ペア:

[(1, 21000798742), (2, 10500399371), (7, 3000114106), (11, 1909163522), (14, 1500057053), (22, 954581761), (77, 272737646), (149, 140944958), (154, 136368823), (179, 117322898), (298, 70472479), (358, 58661449), (1043, 20134994), (1253, 16760414), (1639, 12813178), (1969, 10665718), (2086, 10067497), (2506, 8380207), (3278, 6406589), (3938, 5332859), (5113, 4107334), (10226, 2053667), (11473, 1830454), (13783, 1523674), (22946, 915227), (26671, 787402), (27566, 761837), (35791, 586762), (53342, 393701), (56243, 373394), (71582, 293381), (112486, 186697)]