20156535

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1049}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 40622400

約数和(自身を除く): 20465865

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 61, 63, 105, 183, 305, 315, 427, 549, 915, 1049, 1281, 2135, 2745, 3147, 3843, 5245, 6405, 7343, 9441, 15735, 19215, 22029, 36715, 47205, 63989, 66087, 110145, 191967, 319945, 330435, 447923, 575901, 959835, 1343769, 2239615, 2879505, 4031307, 6718845, 20156535]

約数ペア:

[(1, 20156535), (3, 6718845), (5, 4031307), (7, 2879505), (9, 2239615), (15, 1343769), (21, 959835), (35, 575901), (45, 447923), (61, 330435), (63, 319945), (105, 191967), (183, 110145), (305, 66087), (315, 63989), (427, 47205), (549, 36715), (915, 22029), (1049, 19215), (1281, 15735), (2135, 9441), (2745, 7343), (3147, 6405), (3843, 5245)]