21757398

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:573

約数の個数: 48

約数和(自身を含む): 48312000

約数和(自身を除く): 26554602

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 169, 258, 338, 499, 507, 559, 998, 1014, 1118, 1497, 1677, 2994, 3354, 6487, 7267, 12974, 14534, 19461, 21457, 21801, 38922, 42914, 43602, 64371, 84331, 128742, 168662, 252993, 278941, 505986, 557882, 836823, 1673646, 3626233, 7252466, 10878699, 21757398]

約数ペア:

[(1, 21757398), (2, 10878699), (3, 7252466), (6, 3626233), (13, 1673646), (26, 836823), (39, 557882), (43, 505986), (78, 278941), (86, 252993), (129, 168662), (169, 128742), (258, 84331), (338, 64371), (499, 43602), (507, 42914), (559, 38922), (998, 21801), (1014, 21457), (1118, 19461), (1497, 14534), (1677, 12974), (2994, 7267), (3354, 6487)]