21630875

素因数分解:

$5^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{419}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 9818725

約数列:

[1, 5, 7, 25, 35, 59, 125, 175, 295, 413, 419, 875, 1475, 2065, 2095, 2933, 7375, 10325, 10475, 14665, 24721, 51625, 52375, 73325, 123605, 173047, 366625, 618025, 865235, 3090125, 4326175, 21630875]

約数ペア:

[(1, 21630875), (5, 4326175), (7, 3090125), (25, 865235), (35, 618025), (59, 366625), (125, 173047), (175, 123605), (295, 73325), (413, 52375), (419, 51625), (875, 24721), (1475, 14665), (2065, 10475), (2095, 10325), (2933, 7375)]