20779395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1171}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 41179392

約数和(自身を除く): 20399997

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 169, 195, 273, 455, 507, 845, 1171, 1183, 1365, 2535, 3513, 3549, 5855, 5915, 8197, 15223, 17565, 17745, 24591, 40985, 45669, 76115, 106561, 122955, 197899, 228345, 319683, 532805, 593697, 989495, 1385293, 1598415, 2968485, 4155879, 6926465, 20779395]

約数ペア:

[(1, 20779395), (3, 6926465), (5, 4155879), (7, 2968485), (13, 1598415), (15, 1385293), (21, 989495), (35, 593697), (39, 532805), (65, 319683), (91, 228345), (105, 197899), (169, 122955), (195, 106561), (273, 76115), (455, 45669), (507, 40985), (845, 24591), (1171, 17745), (1183, 17565), (1365, 15223), (2535, 8197), (3513, 5915), (3549, 5855)]