21809530

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1453}}^1$

素因数の和:1558

約数の個数: 32

約数和(自身を含む): 41875200

約数和(自身を除く): 20065670

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 790, 1453, 1501, 2906, 3002, 7265, 7505, 14530, 15010, 27607, 55214, 114787, 138035, 229574, 276070, 573935, 1147870, 2180953, 4361906, 10904765, 21809530]

約数ペア:

[(1, 21809530), (2, 10904765), (5, 4361906), (10, 2180953), (19, 1147870), (38, 573935), (79, 276070), (95, 229574), (158, 138035), (190, 114787), (395, 55214), (790, 27607), (1453, 15010), (1501, 14530), (2906, 7505), (3002, 7265)]