20984865

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1429}}^1$

素因数の和:1537

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 16080735

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1429, 2937, 4287, 4895, 7145, 14685, 15719, 21435, 47157, 78595, 127181, 235785, 381543, 635905, 1398991, 1907715, 4196973, 6994955, 20984865]

約数ペア:

[(1, 20984865), (3, 6994955), (5, 4196973), (11, 1907715), (15, 1398991), (33, 635905), (55, 381543), (89, 235785), (165, 127181), (267, 78595), (445, 47157), (979, 21435), (1335, 15719), (1429, 14685), (2937, 7145), (4287, 4895)]