21641499

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 35754048

約数和(自身を除く): 14112549

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 107, 227, 297, 321, 681, 891, 963, 1177, 2043, 2497, 2889, 3531, 6129, 7491, 8667, 10593, 18387, 22473, 24289, 31779, 67419, 72867, 95337, 202257, 218601, 267179, 655803, 801537, 1967409, 2404611, 7213833, 21641499]

約数ペア:

[(1, 21641499), (3, 7213833), (9, 2404611), (11, 1967409), (27, 801537), (33, 655803), (81, 267179), (99, 218601), (107, 202257), (227, 95337), (297, 72867), (321, 67419), (681, 31779), (891, 24289), (963, 22473), (1177, 18387), (2043, 10593), (2497, 8667), (2889, 7491), (3531, 6129)]