20177745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6199}}^1$

素因数の和:6245

約数の個数: 32

約数和(自身を含む): 38092800

約数和(自身を除く): 17915055

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6199, 18597, 30995, 43393, 92985, 130179, 192169, 216965, 576507, 650895, 960845, 1345183, 2882535, 4035549, 6725915, 20177745]

約数ペア:

[(1, 20177745), (3, 6725915), (5, 4035549), (7, 2882535), (15, 1345183), (21, 960845), (31, 650895), (35, 576507), (93, 216965), (105, 192169), (155, 130179), (217, 92985), (465, 43393), (651, 30995), (1085, 18597), (3255, 6199)]