21365700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{229}}^1\times {\mathrm{311}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 62287680

約数和(自身を除く): 40921980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 229, 300, 311, 458, 622, 687, 916, 933, 1145, 1244, 1374, 1555, 1866, 2290, 2748, 3110, 3435, 3732, 4580, 4665, 5725, 6220, 6870, 7775, 9330, 11450, 13740, 15550, 17175, 18660, 22900, 23325, 31100, 34350, 46650, 68700, 71219, 93300, 142438, 213657, 284876, 356095, 427314, 712190, 854628, 1068285, 1424380, 1780475, 2136570, 3560950, 4273140, 5341425, 7121900, 10682850, 21365700]

約数ペア:

[(1, 21365700), (2, 10682850), (3, 7121900), (4, 5341425), (5, 4273140), (6, 3560950), (10, 2136570), (12, 1780475), (15, 1424380), (20, 1068285), (25, 854628), (30, 712190), (50, 427314), (60, 356095), (75, 284876), (100, 213657), (150, 142438), (229, 93300), (300, 71219), (311, 68700), (458, 46650), (622, 34350), (687, 31100), (916, 23325), (933, 22900), (1145, 18660), (1244, 17175), (1374, 15550), (1555, 13740), (1866, 11450), (2290, 9330), (2748, 7775), (3110, 6870), (3435, 6220), (3732, 5725), (4580, 4665)]