213588975

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4051}}^1$

素因数の和:4120

約数の個数: 48

約数和(自身を含む): 381860480

約数和(自身を除く): 168271505

約数列:

[1, 3, 5, 15, 19, 25, 37, 57, 75, 95, 111, 185, 285, 475, 555, 703, 925, 1425, 2109, 2775, 3515, 4051, 10545, 12153, 17575, 20255, 52725, 60765, 76969, 101275, 149887, 230907, 303825, 384845, 449661, 749435, 1154535, 1924225, 2248305, 2847853, 3747175, 5772675, 8543559, 11241525, 14239265, 42717795, 71196325, 213588975]

約数ペア:

[(1, 213588975), (3, 71196325), (5, 42717795), (15, 14239265), (19, 11241525), (25, 8543559), (37, 5772675), (57, 3747175), (75, 2847853), (95, 2248305), (111, 1924225), (185, 1154535), (285, 749435), (475, 449661), (555, 384845), (703, 303825), (925, 230907), (1425, 149887), (2109, 101275), (2775, 76969), (3515, 60765), (4051, 52725), (10545, 20255), (12153, 17575)]