21485220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15569}}^1$

素因数の和:15604

約数の個数: 48

約数和(自身を含む): 62778240

約数和(自身を除く): 41293020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15569, 31138, 46707, 62276, 77845, 93414, 155690, 186828, 233535, 311380, 358087, 467070, 716174, 934140, 1074261, 1432348, 1790435, 2148522, 3580870, 4297044, 5371305, 7161740, 10742610, 21485220]

約数ペア:

[(1, 21485220), (2, 10742610), (3, 7161740), (4, 5371305), (5, 4297044), (6, 3580870), (10, 2148522), (12, 1790435), (15, 1432348), (20, 1074261), (23, 934140), (30, 716174), (46, 467070), (60, 358087), (69, 311380), (92, 233535), (115, 186828), (138, 155690), (230, 93414), (276, 77845), (345, 62276), (460, 46707), (690, 31138), (1380, 15569)]