19948705

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{24781}}^1$

素因数の和:24816

約数の個数: 16

約数和(自身を含む): 28548864

約数和(自身を除く): 8600159

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 24781, 123905, 173467, 569963, 867335, 2849815, 3989741, 19948705]

約数ペア:

[(1, 19948705), (5, 3989741), (7, 2849815), (23, 867335), (35, 569963), (115, 173467), (161, 123905), (805, 24781)]