20864970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33119}}^1$

素因数の和:33139

約数の個数: 48

約数和(自身を含む): 62000640

約数和(自身を除く): 41135670

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 33119, 66238, 99357, 165595, 198714, 231833, 298071, 331190, 463666, 496785, 596142, 695499, 993570, 1159165, 1390998, 1490355, 2086497, 2318330, 2980710, 3477495, 4172994, 6954990, 10432485, 20864970]

約数ペア:

[(1, 20864970), (2, 10432485), (3, 6954990), (5, 4172994), (6, 3477495), (7, 2980710), (9, 2318330), (10, 2086497), (14, 1490355), (15, 1390998), (18, 1159165), (21, 993570), (30, 695499), (35, 596142), (42, 496785), (45, 463666), (63, 331190), (70, 298071), (90, 231833), (105, 198714), (126, 165595), (210, 99357), (315, 66238), (630, 33119)]