21215672409

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{2029}}^1\times {\mathrm{52021}}^1$

素因数の和:54120

約数の個数: 16

約数和(自身を含む): 28724467520

約数和(自身を除く): 7508795111

約数列:

[1, 3, 67, 201, 2029, 6087, 52021, 135943, 156063, 407829, 3485407, 10456221, 105550609, 316651827, 7071890803, 21215672409]

約数ペア:

[(1, 21215672409), (3, 7071890803), (67, 316651827), (201, 105550609), (2029, 10456221), (6087, 3485407), (52021, 407829), (135943, 156063)]