18490395

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2287}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 37559808

約数和(自身を除く): 19069413

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 385, 539, 735, 1155, 1617, 2287, 2695, 6861, 8085, 11435, 16009, 25157, 34305, 48027, 75471, 80045, 112063, 125785, 176099, 240135, 336189, 377355, 528297, 560315, 880495, 1232693, 1680945, 2641485, 3698079, 6163465, 18490395]

約数ペア:

[(1, 18490395), (3, 6163465), (5, 3698079), (7, 2641485), (11, 1680945), (15, 1232693), (21, 880495), (33, 560315), (35, 528297), (49, 377355), (55, 336189), (77, 240135), (105, 176099), (147, 125785), (165, 112063), (231, 80045), (245, 75471), (385, 48027), (539, 34305), (735, 25157), (1155, 16009), (1617, 11435), (2287, 8085), (2695, 6861)]