21559482

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{431}}^1$

素因数の和:843

約数の個数: 48

約数和(自身を含む): 53644032

約数和(自身を除く): 32084550

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 397, 431, 794, 862, 1191, 1293, 2382, 2586, 2779, 3017, 3573, 3879, 5558, 6034, 7146, 7758, 8337, 9051, 16674, 18102, 25011, 27153, 50022, 54306, 171107, 342214, 513321, 1026642, 1197749, 1539963, 2395498, 3079926, 3593247, 7186494, 10779741, 21559482]

約数ペア:

[(1, 21559482), (2, 10779741), (3, 7186494), (6, 3593247), (7, 3079926), (9, 2395498), (14, 1539963), (18, 1197749), (21, 1026642), (42, 513321), (63, 342214), (126, 171107), (397, 54306), (431, 50022), (794, 27153), (862, 25011), (1191, 18102), (1293, 16674), (2382, 9051), (2586, 8337), (2779, 7758), (3017, 7146), (3573, 6034), (3879, 5558)]