2187788405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1729477}}^1$

素因数の和:1729516

約数の個数: 16

約数和(自身を含む): 2988537984

約数和(自身を除く): 800749579

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 1729477, 8647385, 19024247, 39777971, 95121235, 198889855, 437557681, 2187788405]

約数ペア:

[(1, 2187788405), (5, 437557681), (11, 198889855), (23, 95121235), (55, 39777971), (115, 19024247), (253, 8647385), (1265, 1729477)]