21433685

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 33833856

約数和(自身を除く): 12400171

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 163, 221, 289, 455, 595, 815, 1105, 1141, 1445, 1547, 2023, 2119, 2771, 3757, 5705, 7735, 10115, 10595, 13855, 14833, 18785, 19397, 26299, 36023, 47107, 74165, 96985, 131495, 180115, 235535, 252161, 329749, 612391, 1260805, 1648745, 3061955, 4286737, 21433685]

約数ペア:

[(1, 21433685), (5, 4286737), (7, 3061955), (13, 1648745), (17, 1260805), (35, 612391), (65, 329749), (85, 252161), (91, 235535), (119, 180115), (163, 131495), (221, 96985), (289, 74165), (455, 47107), (595, 36023), (815, 26299), (1105, 19397), (1141, 18785), (1445, 14833), (1547, 13855), (2023, 10595), (2119, 10115), (2771, 7735), (3757, 5705)]