19897995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1523}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 34820352

約数和(自身を除く): 14922357

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 1523, 2613, 4355, 4569, 7615, 13065, 19799, 22845, 59397, 98995, 102041, 296985, 306123, 510205, 1326533, 1530615, 3979599, 6632665, 19897995]

約数ペア:

[(1, 19897995), (3, 6632665), (5, 3979599), (13, 1530615), (15, 1326533), (39, 510205), (65, 306123), (67, 296985), (195, 102041), (201, 98995), (335, 59397), (871, 22845), (1005, 19799), (1523, 13065), (2613, 7615), (4355, 4569)]