18901197

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3371}}^1$

素因数の和:3473

約数の個数: 24

約数和(自身を含む): 31561920

約数和(自身を除く): 12660723

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 3371, 5607, 10113, 23597, 30339, 70791, 212373, 300019, 900057, 2100133, 2700171, 6300399, 18901197]

約数ペア:

[(1, 18901197), (3, 6300399), (7, 2700171), (9, 2100133), (21, 900057), (63, 300019), (89, 212373), (267, 70791), (623, 30339), (801, 23597), (1869, 10113), (3371, 5607)]