20151819

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 30073680

約数和(自身を除く): 9921861

約数列:

[1, 3, 9, 53, 83, 159, 249, 477, 509, 747, 1527, 4399, 4581, 13197, 26977, 39591, 42247, 80931, 126741, 242793, 380223, 2239091, 6717273, 20151819]

約数ペア:

[(1, 20151819), (3, 6717273), (9, 2239091), (53, 380223), (83, 242793), (159, 126741), (249, 80931), (477, 42247), (509, 39591), (747, 26977), (1527, 13197), (4399, 4581)]