388756431

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{673}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 658622016

約数和(自身を除く): 269865585

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 173, 371, 477, 519, 673, 1113, 1211, 1557, 2019, 3339, 3633, 4711, 6057, 9169, 10899, 14133, 27507, 35669, 42399, 64183, 82521, 107007, 116429, 192549, 249683, 321021, 349287, 577647, 749049, 815003, 1047861, 2247147, 2445009, 6170737, 7335027, 18512211, 43195159, 55536633, 129585477, 388756431]

約数ペア:

[(1, 388756431), (3, 129585477), (7, 55536633), (9, 43195159), (21, 18512211), (53, 7335027), (63, 6170737), (159, 2445009), (173, 2247147), (371, 1047861), (477, 815003), (519, 749049), (673, 577647), (1113, 349287), (1211, 321021), (1557, 249683), (2019, 192549), (3339, 116429), (3633, 107007), (4711, 82521), (6057, 64183), (9169, 42399), (10899, 35669), (14133, 27507)]