21663768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128951}}^1$

素因数の和:128967

約数の個数: 32

約数和(自身を含む): 61896960

約数和(自身を除く): 40233192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128951, 257902, 386853, 515804, 773706, 902657, 1031608, 1547412, 1805314, 2707971, 3094824, 3610628, 5415942, 7221256, 10831884, 21663768]

約数ペア:

[(1, 21663768), (2, 10831884), (3, 7221256), (4, 5415942), (6, 3610628), (7, 3094824), (8, 2707971), (12, 1805314), (14, 1547412), (21, 1031608), (24, 902657), (28, 773706), (42, 515804), (56, 386853), (84, 257902), (168, 128951)]