21171077690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1393751}}^1$

素因数の和:1393803

約数の個数: 48

約数和(自身を含む): 45759665664

約数和(自身を除く): 24588587974

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1519, 2170, 3038, 7595, 15190, 1393751, 2787502, 6968755, 9756257, 13937510, 19512514, 43206281, 48781285, 68293799, 86412562, 97562570, 136587598, 216031405, 302443967, 341468995, 432062810, 604887934, 682937990, 1512219835, 2117107769, 3024439670, 4234215538, 10585538845, 21171077690]

約数ペア:

[(1, 21171077690), (2, 10585538845), (5, 4234215538), (7, 3024439670), (10, 2117107769), (14, 1512219835), (31, 682937990), (35, 604887934), (49, 432062810), (62, 341468995), (70, 302443967), (98, 216031405), (155, 136587598), (217, 97562570), (245, 86412562), (310, 68293799), (434, 48781285), (490, 43206281), (1085, 19512514), (1519, 13937510), (2170, 9756257), (3038, 6968755), (7595, 2787502), (15190, 1393751)]