21981932

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8821}}^1$

素因数の和:8921

約数の個数: 24

約数和(自身を含む): 44462880

約数和(自身を除く): 22480948

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 8821, 17642, 35284, 61747, 123494, 246988, 785069, 1570138, 3140276, 5495483, 10990966, 21981932]

約数ペア:

[(1, 21981932), (2, 10990966), (4, 5495483), (7, 3140276), (14, 1570138), (28, 785069), (89, 246988), (178, 123494), (356, 61747), (623, 35284), (1246, 17642), (2492, 8821)]