21407672

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18713}}^1$

素因数の和:18743

約数の個数: 32

約数和(自身を含む): 47159280

約数和(自身を除く): 25751608

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18713, 37426, 74852, 149704, 205843, 243269, 411686, 486538, 823372, 973076, 1646744, 1946152, 2675959, 5351918, 10703836, 21407672]

約数ペア:

[(1, 21407672), (2, 10703836), (4, 5351918), (8, 2675959), (11, 1946152), (13, 1646744), (22, 973076), (26, 823372), (44, 486538), (52, 411686), (88, 243269), (104, 205843), (143, 149704), (286, 74852), (572, 37426), (1144, 18713)]