18980535

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1109}}^1$

素因数の和:1287

約数の個数: 32

約数和(自身を含む): 34951680

約数和(自身を除く): 15971145

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 163, 489, 815, 1109, 1141, 2445, 3327, 3423, 5545, 5705, 7763, 16635, 17115, 23289, 38815, 116445, 180767, 542301, 903835, 1265369, 2711505, 3796107, 6326845, 18980535]

約数ペア:

[(1, 18980535), (3, 6326845), (5, 3796107), (7, 2711505), (15, 1265369), (21, 903835), (35, 542301), (105, 180767), (163, 116445), (489, 38815), (815, 23289), (1109, 17115), (1141, 16635), (2445, 7763), (3327, 5705), (3423, 5545)]