21308300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 51257136

約数和(自身を除く): 29948836

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 74, 100, 130, 148, 185, 260, 325, 370, 443, 481, 650, 740, 886, 925, 962, 1300, 1772, 1850, 1924, 2215, 2405, 3700, 4430, 4810, 5759, 8860, 9620, 11075, 11518, 12025, 16391, 22150, 23036, 24050, 28795, 32782, 44300, 48100, 57590, 65564, 81955, 115180, 143975, 163910, 213083, 287950, 327820, 409775, 426166, 575900, 819550, 852332, 1065415, 1639100, 2130830, 4261660, 5327075, 10654150, 21308300]

約数ペア:

[(1, 21308300), (2, 10654150), (4, 5327075), (5, 4261660), (10, 2130830), (13, 1639100), (20, 1065415), (25, 852332), (26, 819550), (37, 575900), (50, 426166), (52, 409775), (65, 327820), (74, 287950), (100, 213083), (130, 163910), (148, 143975), (185, 115180), (260, 81955), (325, 65564), (370, 57590), (443, 48100), (481, 44300), (650, 32782), (740, 28795), (886, 24050), (925, 23036), (962, 22150), (1300, 16391), (1772, 12025), (1850, 11518), (1924, 11075), (2215, 9620), (2405, 8860), (3700, 5759), (4430, 4810)]