21821900

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{3257}}^1$

素因数の和:3338

約数の個数: 36

約数和(自身を含む): 48075048

約数和(自身を除く): 26253148

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 268, 335, 670, 1340, 1675, 3257, 3350, 6514, 6700, 13028, 16285, 32570, 65140, 81425, 162850, 218219, 325700, 436438, 872876, 1091095, 2182190, 4364380, 5455475, 10910950, 21821900]

約数ペア:

[(1, 21821900), (2, 10910950), (4, 5455475), (5, 4364380), (10, 2182190), (20, 1091095), (25, 872876), (50, 436438), (67, 325700), (100, 218219), (134, 162850), (268, 81425), (335, 65140), (670, 32570), (1340, 16285), (1675, 13028), (3257, 6700), (3350, 6514)]