21000201243

素因数分解:

$3^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1153}}^1\times {\mathrm{1193}}^1$

素因数の和:3083

約数の個数: 32

約数和(自身を含む): 32098999296

約数和(自身を除く): 11098798053

約数列:

[1, 3, 7, 21, 727, 1153, 1193, 2181, 3459, 3579, 5089, 8071, 8351, 15267, 24213, 25053, 838231, 867311, 1375529, 2514693, 2601933, 4126587, 5867617, 6071177, 9628703, 17602851, 18213531, 28886109, 1000009583, 3000028749, 7000067081, 21000201243]

約数ペア:

[(1, 21000201243), (3, 7000067081), (7, 3000028749), (21, 1000009583), (727, 28886109), (1153, 18213531), (1193, 17602851), (2181, 9628703), (3459, 6071177), (3579, 5867617), (5089, 4126587), (8071, 2601933), (8351, 2514693), (15267, 1375529), (24213, 867311), (25053, 838231)]