21578294

素因数分解:

$2^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:276

約数の個数: 24

約数和(自身を含む): 34079760

約数和(自身を除く): 12501466

約数列:

[1, 2, 31, 62, 103, 109, 206, 218, 961, 1922, 3193, 3379, 6386, 6758, 11227, 22454, 98983, 104749, 197966, 209498, 348037, 696074, 10789147, 21578294]

約数ペア:

[(1, 21578294), (2, 10789147), (31, 696074), (62, 348037), (103, 209498), (109, 197966), (206, 104749), (218, 98983), (961, 22454), (1922, 11227), (3193, 6758), (3379, 6386)]