21819665

素因数分解:

$5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{6427}}^1$

素因数の和:6536

約数の個数: 16

約数和(自身を含む): 30237312

約数和(自身を除く): 8417647

約数列:

[1, 5, 7, 35, 97, 485, 679, 3395, 6427, 32135, 44989, 224945, 623419, 3117095, 4363933, 21819665]

約数ペア:

[(1, 21819665), (5, 4363933), (7, 3117095), (35, 623419), (97, 224945), (485, 44989), (679, 32135), (3395, 6427)]