18981738

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:359

約数の個数: 48

約数和(自身を含む): 42532776

約数和(自身を除く): 23551038

約数列:

[1, 2, 3, 6, 9, 18, 53, 101, 106, 159, 197, 202, 303, 318, 394, 477, 591, 606, 909, 954, 1182, 1773, 1818, 3546, 5353, 10441, 10706, 16059, 19897, 20882, 31323, 32118, 39794, 48177, 59691, 62646, 93969, 96354, 119382, 179073, 187938, 358146, 1054541, 2109082, 3163623, 6327246, 9490869, 18981738]

約数ペア:

[(1, 18981738), (2, 9490869), (3, 6327246), (6, 3163623), (9, 2109082), (18, 1054541), (53, 358146), (101, 187938), (106, 179073), (159, 119382), (197, 96354), (202, 93969), (303, 62646), (318, 59691), (394, 48177), (477, 39794), (591, 32118), (606, 31323), (909, 20882), (954, 19897), (1182, 16059), (1773, 10706), (1818, 10441), (3546, 5353)]