19893537

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{631}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 29971968

約数和(自身を除く): 10078431

約数列:

[1, 3, 9, 31, 93, 113, 279, 339, 631, 1017, 1893, 3503, 5679, 10509, 19561, 31527, 58683, 71303, 176049, 213909, 641727, 2210393, 6631179, 19893537]

約数ペア:

[(1, 19893537), (3, 6631179), (9, 2210393), (31, 641727), (93, 213909), (113, 176049), (279, 71303), (339, 58683), (631, 31527), (1017, 19561), (1893, 10509), (3503, 5679)]