21080102008

素因数分解:

$2^3\times 7^1\times {\mathrm{376430393}}^1$

素因数の和:376430406

約数の個数: 16

約数和(自身を含む): 45171647280

約数和(自身を除く): 24091545272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 376430393, 752860786, 1505721572, 2635012751, 3011443144, 5270025502, 10540051004, 21080102008]

約数ペア:

[(1, 21080102008), (2, 10540051004), (4, 5270025502), (7, 3011443144), (8, 2635012751), (14, 1505721572), (28, 752860786), (56, 376430393)]