20117019

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{547}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 30933504

約数和(自身を除く): 10816485

約数列:

[1, 3, 13, 23, 39, 41, 69, 123, 299, 533, 547, 897, 943, 1599, 1641, 2829, 7111, 12259, 12581, 21333, 22427, 36777, 37743, 67281, 163553, 291551, 490659, 515821, 874653, 1547463, 6705673, 20117019]

約数ペア:

[(1, 20117019), (3, 6705673), (13, 1547463), (23, 874653), (39, 515821), (41, 490659), (69, 291551), (123, 163553), (299, 67281), (533, 37743), (547, 36777), (897, 22427), (943, 21333), (1599, 12581), (1641, 12259), (2829, 7111)]