20795896821

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1\times {\mathrm{733}}^1$

素因数の和:1306

約数の個数: 64

約数和(自身を含む): 33416847360

約数和(自身を除く): 12620950539

約数列:

[1, 3, 7, 21, 23, 69, 151, 161, 389, 453, 483, 733, 1057, 1167, 2199, 2723, 3171, 3473, 5131, 8169, 8947, 10419, 15393, 16859, 24311, 26841, 50577, 58739, 62629, 72933, 110683, 118013, 176217, 187887, 285137, 332049, 354039, 411173, 774781, 855411, 1233519, 1350997, 1995959, 2324343, 2545709, 4052991, 5987877, 6558151, 7637127, 9456979, 17819963, 19674453, 28370937, 43055687, 45907057, 53459889, 129167061, 137721171, 301389809, 904169427, 990280801, 2970842403, 6931965607, 20795896821]

約数ペア:

[(1, 20795896821), (3, 6931965607), (7, 2970842403), (21, 990280801), (23, 904169427), (69, 301389809), (151, 137721171), (161, 129167061), (389, 53459889), (453, 45907057), (483, 43055687), (733, 28370937), (1057, 19674453), (1167, 17819963), (2199, 9456979), (2723, 7637127), (3171, 6558151), (3473, 5987877), (5131, 4052991), (8169, 2545709), (8947, 2324343), (10419, 1995959), (15393, 1350997), (16859, 1233519), (24311, 855411), (26841, 774781), (50577, 411173), (58739, 354039), (62629, 332049), (72933, 285137), (110683, 187887), (118013, 176217)]