20769969

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 31703040

約数和(自身を除く): 10933071

約数列:

[1, 3, 11, 31, 33, 79, 93, 237, 257, 341, 771, 869, 1023, 2449, 2607, 2827, 7347, 7967, 8481, 20303, 23901, 26939, 60909, 80817, 87637, 223333, 262911, 629393, 669999, 1888179, 6923323, 20769969]

約数ペア:

[(1, 20769969), (3, 6923323), (11, 1888179), (31, 669999), (33, 629393), (79, 262911), (93, 223333), (237, 87637), (257, 80817), (341, 60909), (771, 26939), (869, 23901), (1023, 20303), (2449, 8481), (2607, 7967), (2827, 7347)]