19742855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{15607}}^1$

素因数の和:15646

約数の個数: 16

約数和(自身を含む): 26970624

約数和(自身を除く): 7227769

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 15607, 78035, 171677, 358961, 858385, 1794805, 3948571, 19742855]

約数ペア:

[(1, 19742855), (5, 3948571), (11, 1794805), (23, 858385), (55, 358961), (115, 171677), (253, 78035), (1265, 15607)]