138888988

素因数分解:

$2^2\times 7^1\times {\mathrm{727}}^1\times {\mathrm{6823}}^1$

素因数の和:7561

約数の個数: 24

約数和(自身を含む): 278200832

約数和(自身を除く): 139311844

約数列:

[1, 2, 4, 7, 14, 28, 727, 1454, 2908, 5089, 6823, 10178, 13646, 20356, 27292, 47761, 95522, 191044, 4960321, 9920642, 19841284, 34722247, 69444494, 138888988]

約数ペア:

[(1, 138888988), (2, 69444494), (4, 34722247), (7, 19841284), (14, 9920642), (28, 4960321), (727, 191044), (1454, 95522), (2908, 47761), (5089, 27292), (6823, 20356), (10178, 13646)]