20399688

素因数分解:

$2^3\times 3^4\times {\mathrm{31481}}^1$

素因数の和:31499

約数の個数: 40

約数和(自身を含む): 57139830

約数和(自身を除く): 36740142

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31481, 62962, 94443, 125924, 188886, 251848, 283329, 377772, 566658, 755544, 849987, 1133316, 1699974, 2266632, 2549961, 3399948, 5099922, 6799896, 10199844, 20399688]

約数ペア:

[(1, 20399688), (2, 10199844), (3, 6799896), (4, 5099922), (6, 3399948), (8, 2549961), (9, 2266632), (12, 1699974), (18, 1133316), (24, 849987), (27, 755544), (36, 566658), (54, 377772), (72, 283329), (81, 251848), (108, 188886), (162, 125924), (216, 94443), (324, 62962), (648, 31481)]