19468735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 27897408

約数和(自身を除く): 8428673

約数列:

[1, 5, 11, 13, 55, 65, 73, 143, 365, 373, 715, 803, 949, 1865, 4015, 4103, 4745, 4849, 10439, 20515, 24245, 27229, 52195, 53339, 136145, 266695, 299519, 353977, 1497595, 1769885, 3893747, 19468735]

約数ペア:

[(1, 19468735), (5, 3893747), (11, 1769885), (13, 1497595), (55, 353977), (65, 299519), (73, 266695), (143, 136145), (365, 53339), (373, 52195), (715, 27229), (803, 24245), (949, 20515), (1865, 10439), (4015, 4849), (4103, 4745)]