20968101

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 38338560

約数和(自身を除く): 17370459

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 79, 99, 231, 237, 383, 553, 693, 711, 869, 1149, 1659, 2607, 2681, 3447, 4213, 4977, 6083, 7821, 8043, 12639, 18249, 24129, 29491, 30257, 37917, 54747, 88473, 90771, 211799, 265419, 272313, 332827, 635397, 998481, 1906191, 2329789, 2995443, 6989367, 20968101]

約数ペア:

[(1, 20968101), (3, 6989367), (7, 2995443), (9, 2329789), (11, 1906191), (21, 998481), (33, 635397), (63, 332827), (77, 272313), (79, 265419), (99, 211799), (231, 90771), (237, 88473), (383, 54747), (553, 37917), (693, 30257), (711, 29491), (869, 24129), (1149, 18249), (1659, 12639), (2607, 8043), (2681, 7821), (3447, 6083), (4213, 4977)]