20021976

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21391}}^1$

素因数の和:21416

約数の個数: 48

約数和(自身を含む): 58400160

約数和(自身を除く): 38378184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21391, 42782, 64173, 85564, 128346, 171128, 192519, 256692, 278083, 385038, 513384, 556166, 770076, 834249, 1112332, 1540152, 1668498, 2224664, 2502747, 3336996, 5005494, 6673992, 10010988, 20021976]

約数ペア:

[(1, 20021976), (2, 10010988), (3, 6673992), (4, 5005494), (6, 3336996), (8, 2502747), (9, 2224664), (12, 1668498), (13, 1540152), (18, 1112332), (24, 834249), (26, 770076), (36, 556166), (39, 513384), (52, 385038), (72, 278083), (78, 256692), (104, 192519), (117, 171128), (156, 128346), (234, 85564), (312, 64173), (468, 42782), (936, 21391)]