20123229

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 32569344

約数和(自身を除く): 12446115

約数列:

[1, 3, 7, 21, 23, 61, 69, 161, 183, 427, 483, 683, 1281, 1403, 2049, 4209, 4781, 9821, 14343, 15709, 29463, 41663, 47127, 109963, 124989, 291641, 329889, 874923, 958249, 2874747, 6707743, 20123229]

約数ペア:

[(1, 20123229), (3, 6707743), (7, 2874747), (21, 958249), (23, 874923), (61, 329889), (69, 291641), (161, 124989), (183, 109963), (427, 47127), (483, 41663), (683, 29463), (1281, 15709), (1403, 14343), (2049, 9821), (4209, 4781)]