81976365

素因数分解:

$3^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{2887}}^1$

素因数の和:3529

約数の個数: 24

約数和(自身を含む): 142366848

約数和(自身を除く): 60390483

約数列:

[1, 3, 5, 9, 15, 45, 631, 1893, 2887, 3155, 5679, 8661, 9465, 14435, 25983, 28395, 43305, 129915, 1821697, 5465091, 9108485, 16395273, 27325455, 81976365]

約数ペア:

[(1, 81976365), (3, 27325455), (5, 16395273), (9, 9108485), (15, 5465091), (45, 1821697), (631, 129915), (1893, 43305), (2887, 28395), (3155, 25983), (5679, 14435), (8661, 9465)]