21120816

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{15173}}^1$

素因数の和:15213

約数の個数: 40

約数和(自身を含む): 56447280

約数和(自身を除く): 35326464

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 116, 174, 232, 348, 464, 696, 1392, 15173, 30346, 45519, 60692, 91038, 121384, 182076, 242768, 364152, 440017, 728304, 880034, 1320051, 1760068, 2640102, 3520136, 5280204, 7040272, 10560408, 21120816]

約数ペア:

[(1, 21120816), (2, 10560408), (3, 7040272), (4, 5280204), (6, 3520136), (8, 2640102), (12, 1760068), (16, 1320051), (24, 880034), (29, 728304), (48, 440017), (58, 364152), (87, 242768), (116, 182076), (174, 121384), (232, 91038), (348, 60692), (464, 45519), (696, 30346), (1392, 15173)]