21576758

素因数分解:

$2^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 16784842

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 343, 443, 497, 686, 886, 994, 3101, 3479, 6202, 6958, 21707, 24353, 31453, 43414, 48706, 62906, 151949, 220171, 303898, 440342, 1541197, 3082394, 10788379, 21576758]

約数ペア:

[(1, 21576758), (2, 10788379), (7, 3082394), (14, 1541197), (49, 440342), (71, 303898), (98, 220171), (142, 151949), (343, 62906), (443, 48706), (497, 43414), (686, 31453), (886, 24353), (994, 21707), (3101, 6958), (3479, 6202)]