21400272

素因数分解:

$2^4\times 3^2\times {\mathrm{353}}^1\times {\mathrm{421}}^1$

素因数の和:788

約数の個数: 60

約数和(自身を含む): 60203364

約数和(自身を除く): 38803092

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 353, 421, 706, 842, 1059, 1263, 1412, 1684, 2118, 2526, 2824, 3177, 3368, 3789, 4236, 5052, 5648, 6354, 6736, 7578, 8472, 10104, 12708, 15156, 16944, 20208, 25416, 30312, 50832, 60624, 148613, 297226, 445839, 594452, 891678, 1188904, 1337517, 1783356, 2377808, 2675034, 3566712, 5350068, 7133424, 10700136, 21400272]

約数ペア:

[(1, 21400272), (2, 10700136), (3, 7133424), (4, 5350068), (6, 3566712), (8, 2675034), (9, 2377808), (12, 1783356), (16, 1337517), (18, 1188904), (24, 891678), (36, 594452), (48, 445839), (72, 297226), (144, 148613), (353, 60624), (421, 50832), (706, 30312), (842, 25416), (1059, 20208), (1263, 16944), (1412, 15156), (1684, 12708), (2118, 10104), (2526, 8472), (2824, 7578), (3177, 6736), (3368, 6354), (3789, 5648), (4236, 5052)]