81421928

素因数分解:

$2^3\times 7^2\times {\mathrm{207709}}^1$

素因数の和:207729

約数の個数: 24

約数和(自身を含む): 177592050

約数和(自身を除く): 96170122

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 207709, 415418, 830836, 1453963, 1661672, 2907926, 5815852, 10177741, 11631704, 20355482, 40710964, 81421928]

約数ペア:

[(1, 81421928), (2, 40710964), (4, 20355482), (7, 11631704), (8, 10177741), (14, 5815852), (28, 2907926), (49, 1661672), (56, 1453963), (98, 830836), (196, 415418), (392, 207709)]