19896849

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7703}}^1$

素因数の和:7757

約数の個数: 24

約数和(自身を含む): 33651072

約数和(自身を除く): 13754223

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7703, 23109, 53921, 69327, 161763, 315823, 485289, 947469, 2210761, 2842407, 6632283, 19896849]

約数ペア:

[(1, 19896849), (3, 6632283), (7, 2842407), (9, 2210761), (21, 947469), (41, 485289), (63, 315823), (123, 161763), (287, 69327), (369, 53921), (861, 23109), (2583, 7703)]