19947837

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:933

約数の個数: 32

約数和(自身を含む): 33143040

約数和(自身を除く): 13195203

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 267, 273, 623, 821, 1157, 1869, 2463, 3471, 5747, 8099, 10673, 17241, 24297, 32019, 73069, 74711, 219207, 224133, 511483, 949897, 1534449, 2849691, 6649279, 19947837]

約数ペア:

[(1, 19947837), (3, 6649279), (7, 2849691), (13, 1534449), (21, 949897), (39, 511483), (89, 224133), (91, 219207), (267, 74711), (273, 73069), (623, 32019), (821, 24297), (1157, 17241), (1869, 10673), (2463, 8099), (3471, 5747)]