21158894

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 34884000

約数和(自身を除く): 13725106

約数列:

[1, 2, 19, 37, 38, 74, 101, 149, 202, 298, 703, 1406, 1919, 2831, 3737, 3838, 5513, 5662, 7474, 11026, 15049, 30098, 71003, 104747, 142006, 209494, 285931, 556813, 571862, 1113626, 10579447, 21158894]

約数ペア:

[(1, 21158894), (2, 10579447), (19, 1113626), (37, 571862), (38, 556813), (74, 285931), (101, 209494), (149, 142006), (202, 104747), (298, 71003), (703, 30098), (1406, 15049), (1919, 11026), (2831, 7474), (3737, 5662), (3838, 5513)]