20496518

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{569}}^1$

素因数の和:692

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 16275322

約数列:

[1, 2, 7, 14, 31, 62, 83, 166, 217, 434, 569, 581, 1138, 1162, 2573, 3983, 5146, 7966, 17639, 18011, 35278, 36022, 47227, 94454, 123473, 246946, 330589, 661178, 1464037, 2928074, 10248259, 20496518]

約数ペア:

[(1, 20496518), (2, 10248259), (7, 2928074), (14, 1464037), (31, 661178), (62, 330589), (83, 246946), (166, 123473), (217, 94454), (434, 47227), (569, 36022), (581, 35278), (1138, 18011), (1162, 17639), (2573, 7966), (3983, 5146)]