138428388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{549319}}^1$

素因数の和:549336

約数の個数: 36

約数和(自身を含む): 399904960

約数和(自身を除く): 261476572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 549319, 1098638, 1647957, 2197276, 3295914, 3845233, 4943871, 6591828, 7690466, 9887742, 11535699, 15380932, 19775484, 23071398, 34607097, 46142796, 69214194, 138428388]

約数ペア:

[(1, 138428388), (2, 69214194), (3, 46142796), (4, 34607097), (6, 23071398), (7, 19775484), (9, 15380932), (12, 11535699), (14, 9887742), (18, 7690466), (21, 6591828), (28, 4943871), (36, 3845233), (42, 3295914), (63, 2197276), (84, 1647957), (126, 1098638), (252, 549319)]