397642078

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{20533}}^1$

素因数の和:20979

約数の個数: 16

約数和(自身を含む): 623905056

約数和(自身を除く): 226262978

約数列:

[1, 2, 23, 46, 421, 842, 9683, 19366, 20533, 41066, 472259, 944518, 8644393, 17288786, 198821039, 397642078]

約数ペア:

[(1, 397642078), (2, 198821039), (23, 17288786), (46, 8644393), (421, 944518), (842, 472259), (9683, 41066), (19366, 20533)]