21881418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{12197}}^1$

素因数の和:12238

約数の個数: 32

約数和(自身を含む): 49182336

約数和(自身を除く): 27300918

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 12197, 24394, 36591, 73182, 158561, 280531, 317122, 475683, 561062, 841593, 951366, 1683186, 3646903, 7293806, 10940709, 21881418]

約数ペア:

[(1, 21881418), (2, 10940709), (3, 7293806), (6, 3646903), (13, 1683186), (23, 951366), (26, 841593), (39, 561062), (46, 475683), (69, 317122), (78, 280531), (138, 158561), (299, 73182), (598, 36591), (897, 24394), (1794, 12197)]