21499443

素因数分解:

$3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1031}}^1$

素因数の和:1375

約数の個数: 24

約数和(自身を含む): 35632896

約数和(自身を除く): 14133453

約数列:

[1, 3, 7, 9, 21, 63, 331, 993, 1031, 2317, 2979, 3093, 6951, 7217, 9279, 20853, 21651, 64953, 341261, 1023783, 2388827, 3071349, 7166481, 21499443]

約数ペア:

[(1, 21499443), (3, 7166481), (7, 3071349), (9, 2388827), (21, 1023783), (63, 341261), (331, 64953), (993, 21651), (1031, 20853), (2317, 9279), (2979, 7217), (3093, 6951)]