21000391695

素因数分解:

$3^5\times 5^1\times {\mathrm{461}}^1\times {\mathrm{37493}}^1$

素因数の和:37974

約数の個数: 48

約数和(自身を含む): 37831745952

約数和(自身を除く): 16831354257

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 461, 1215, 1383, 2305, 4149, 6915, 12447, 20745, 37341, 37493, 62235, 112023, 112479, 186705, 187465, 337437, 560115, 562395, 1012311, 1687185, 3036933, 5061555, 9110799, 15184665, 17284273, 45553995, 51852819, 86421365, 155558457, 259264095, 466675371, 777792285, 1400026113, 2333376855, 4200078339, 7000130565, 21000391695]

約数ペア:

[(1, 21000391695), (3, 7000130565), (5, 4200078339), (9, 2333376855), (15, 1400026113), (27, 777792285), (45, 466675371), (81, 259264095), (135, 155558457), (243, 86421365), (405, 51852819), (461, 45553995), (1215, 17284273), (1383, 15184665), (2305, 9110799), (4149, 5061555), (6915, 3036933), (12447, 1687185), (20745, 1012311), (37341, 562395), (37493, 560115), (62235, 337437), (112023, 187465), (112479, 186705)]