281563639

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{983}}^1$

素因数の和:1119

約数の個数: 32

約数和(自身を含む): 357073920

約数和(自身を除く): 75510281

約数列:

[1, 7, 17, 29, 83, 119, 203, 493, 581, 983, 1411, 2407, 3451, 6881, 9877, 16711, 16849, 28507, 40919, 81589, 116977, 199549, 286433, 484619, 571123, 1387013, 2366081, 3392333, 9709091, 16562567, 40223377, 281563639]

約数ペア:

[(1, 281563639), (7, 40223377), (17, 16562567), (29, 9709091), (83, 3392333), (119, 2366081), (203, 1387013), (493, 571123), (581, 484619), (983, 286433), (1411, 199549), (2407, 116977), (3451, 81589), (6881, 40919), (9877, 28507), (16711, 16849)]