21629890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{599}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 19323710

約数列:

[1, 2, 5, 10, 23, 46, 115, 157, 230, 314, 599, 785, 1198, 1570, 2995, 3611, 5990, 7222, 13777, 18055, 27554, 36110, 68885, 94043, 137770, 188086, 470215, 940430, 2162989, 4325978, 10814945, 21629890]

約数ペア:

[(1, 21629890), (2, 10814945), (5, 4325978), (10, 2162989), (23, 940430), (46, 470215), (115, 188086), (157, 137770), (230, 94043), (314, 68885), (599, 36110), (785, 27554), (1198, 18055), (1570, 13777), (2995, 7222), (3611, 5990)]