19815873

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:917

約数の個数: 32

約数和(自身を含む): 33285120

約数和(自身を除く): 13469247

約数列:

[1, 3, 7, 11, 21, 33, 77, 109, 231, 327, 763, 787, 1199, 2289, 2361, 3597, 5509, 8393, 8657, 16527, 25179, 25971, 60599, 85783, 181797, 257349, 600481, 943613, 1801443, 2830839, 6605291, 19815873]

約数ペア:

[(1, 19815873), (3, 6605291), (7, 2830839), (11, 1801443), (21, 943613), (33, 600481), (77, 257349), (109, 181797), (231, 85783), (327, 60599), (763, 25971), (787, 25179), (1199, 16527), (2289, 8657), (2361, 8393), (3597, 5509)]