21795410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 49496832

約数和(自身を除く): 27701422

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 43, 65, 70, 86, 91, 130, 182, 215, 301, 430, 455, 557, 559, 602, 910, 1114, 1118, 1505, 2785, 2795, 3010, 3899, 3913, 5570, 5590, 7241, 7798, 7826, 14482, 19495, 19565, 23951, 36205, 38990, 39130, 47902, 50687, 72410, 101374, 119755, 167657, 239510, 253435, 311363, 335314, 506870, 622726, 838285, 1556815, 1676570, 2179541, 3113630, 4359082, 10897705, 21795410]

約数ペア:

[(1, 21795410), (2, 10897705), (5, 4359082), (7, 3113630), (10, 2179541), (13, 1676570), (14, 1556815), (26, 838285), (35, 622726), (43, 506870), (65, 335314), (70, 311363), (86, 253435), (91, 239510), (130, 167657), (182, 119755), (215, 101374), (301, 72410), (430, 50687), (455, 47902), (557, 39130), (559, 38990), (602, 36205), (910, 23951), (1114, 19565), (1118, 19495), (1505, 14482), (2785, 7826), (2795, 7798), (3010, 7241), (3899, 5590), (3913, 5570)]