81541876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{21481}}^1$

素因数の和:21571

約数の個数: 24

約数和(自身を含む): 155787464

約数和(自身を除く): 74245588

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 21481, 42962, 85924, 279253, 558506, 1117012, 1568113, 3136226, 6272452, 20385469, 40770938, 81541876]

約数ペア:

[(1, 81541876), (2, 40770938), (4, 20385469), (13, 6272452), (26, 3136226), (52, 1568113), (73, 1117012), (146, 558506), (292, 279253), (949, 85924), (1898, 42962), (3796, 21481)]