20616519

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2879}}^1$

素因数の和:2931

約数の個数: 32

約数和(自身を含む): 35389440

約数和(自身を除く): 14772921

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2879, 7161, 8637, 20153, 31669, 60459, 89249, 95007, 221683, 267747, 624743, 665049, 981739, 1874229, 2945217, 6872173, 20616519]

約数ペア:

[(1, 20616519), (3, 6872173), (7, 2945217), (11, 1874229), (21, 981739), (31, 665049), (33, 624743), (77, 267747), (93, 221683), (217, 95007), (231, 89249), (341, 60459), (651, 31669), (1023, 20153), (2387, 8637), (2879, 7161)]