19880553

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{967}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13573527

約数列:

[1, 3, 7, 11, 21, 33, 77, 89, 231, 267, 623, 967, 979, 1869, 2901, 2937, 6769, 6853, 10637, 20307, 20559, 31911, 74459, 86063, 223377, 258189, 602441, 946693, 1807323, 2840079, 6626851, 19880553]

約数ペア:

[(1, 19880553), (3, 6626851), (7, 2840079), (11, 1807323), (21, 946693), (33, 602441), (77, 258189), (89, 223377), (231, 86063), (267, 74459), (623, 31911), (967, 20559), (979, 20307), (1869, 10637), (2901, 6853), (2937, 6769)]