21554408090

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1\times {\mathrm{90599}}^1$

素因数の和:91286

約数の個数: 32

約数和(自身を含む): 39908937600

約数和(自身を除く): 18354529510

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 643, 1286, 3215, 6430, 23791, 47582, 90599, 118955, 181198, 237910, 452995, 905990, 3352163, 6704326, 16760815, 33521630, 58255157, 116510314, 291275785, 582551570, 2155440809, 4310881618, 10777204045, 21554408090]

約数ペア:

[(1, 21554408090), (2, 10777204045), (5, 4310881618), (10, 2155440809), (37, 582551570), (74, 291275785), (185, 116510314), (370, 58255157), (643, 33521630), (1286, 16760815), (3215, 6704326), (6430, 3352163), (23791, 905990), (47582, 452995), (90599, 237910), (118955, 181198)]