21890949890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{95178043}}^1$

素因数の和:95178073

約数の個数: 16

約数和(自身を含む): 41116915008

約数和(自身を除く): 19225965118

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 95178043, 190356086, 475890215, 951780430, 2189094989, 4378189978, 10945474945, 21890949890]

約数ペア:

[(1, 21890949890), (2, 10945474945), (5, 4378189978), (10, 2189094989), (23, 951780430), (46, 475890215), (115, 190356086), (230, 95178043)]