21812654

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 13438546

約数列:

[1, 2, 31, 59, 62, 67, 89, 118, 134, 178, 1829, 2077, 2759, 3658, 3953, 4154, 5251, 5518, 5963, 7906, 10502, 11926, 122543, 162781, 184853, 245086, 325562, 351817, 369706, 703634, 10906327, 21812654]

約数ペア:

[(1, 21812654), (2, 10906327), (31, 703634), (59, 369706), (62, 351817), (67, 325562), (89, 245086), (118, 184853), (134, 162781), (178, 122543), (1829, 11926), (2077, 10502), (2759, 7906), (3658, 5963), (3953, 5518), (4154, 5251)]