20161621215

素因数分解:

$3^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{912497}}^1$

素因数の和:912999

約数の個数: 24

約数和(自身を含む): 35018023248

約数和(自身を除く): 14856402033

約数列:

[1, 3, 5, 9, 15, 45, 491, 1473, 2455, 4419, 7365, 22095, 912497, 2737491, 4562485, 8212473, 13687455, 41062365, 448036027, 1344108081, 2240180135, 4032324243, 6720540405, 20161621215]

約数ペア:

[(1, 20161621215), (3, 6720540405), (5, 4032324243), (9, 2240180135), (15, 1344108081), (45, 448036027), (491, 41062365), (1473, 13687455), (2455, 8212473), (4419, 4562485), (7365, 2737491), (22095, 912497)]