21037535127

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{41851}}^1$

素因数の和:42044

約数の個数: 48

約数和(自身を含む): 35517281280

約数和(自身を除く): 14479746153

約数列:

[1, 3, 7, 9, 21, 63, 79, 101, 237, 303, 553, 707, 711, 909, 1659, 2121, 4977, 6363, 7979, 23937, 41851, 55853, 71811, 125553, 167559, 292957, 376659, 502677, 878871, 2636613, 3306229, 4226951, 9918687, 12680853, 23143603, 29588657, 29756061, 38042559, 69430809, 88765971, 208292427, 266297913, 333929129, 1001787387, 2337503903, 3005362161, 7012511709, 21037535127]

約数ペア:

[(1, 21037535127), (3, 7012511709), (7, 3005362161), (9, 2337503903), (21, 1001787387), (63, 333929129), (79, 266297913), (101, 208292427), (237, 88765971), (303, 69430809), (553, 38042559), (707, 29756061), (711, 29588657), (909, 23143603), (1659, 12680853), (2121, 9918687), (4977, 4226951), (6363, 3306229), (7979, 2636613), (23937, 878871), (41851, 502677), (55853, 376659), (71811, 292957), (125553, 167559)]