21173744

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42689}}^1$

素因数の和:42728

約数の個数: 20

約数和(自身を含む): 42348480

約数和(自身を除く): 21174736

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42689, 85378, 170756, 341512, 683024, 1323359, 2646718, 5293436, 10586872, 21173744]

約数ペア:

[(1, 21173744), (2, 10586872), (4, 5293436), (8, 2646718), (16, 1323359), (31, 683024), (62, 341512), (124, 170756), (248, 85378), (496, 42689)]