21113300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 50127000

約数和(自身を除く): 29013700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 109, 130, 149, 218, 260, 298, 325, 436, 545, 596, 650, 745, 1090, 1300, 1417, 1490, 1937, 2180, 2725, 2834, 2980, 3725, 3874, 5450, 5668, 7085, 7450, 7748, 9685, 10900, 14170, 14900, 16241, 19370, 28340, 32482, 35425, 38740, 48425, 64964, 70850, 81205, 96850, 141700, 162410, 193700, 211133, 324820, 406025, 422266, 812050, 844532, 1055665, 1624100, 2111330, 4222660, 5278325, 10556650, 21113300]

約数ペア:

[(1, 21113300), (2, 10556650), (4, 5278325), (5, 4222660), (10, 2111330), (13, 1624100), (20, 1055665), (25, 844532), (26, 812050), (50, 422266), (52, 406025), (65, 324820), (100, 211133), (109, 193700), (130, 162410), (149, 141700), (218, 96850), (260, 81205), (298, 70850), (325, 64964), (436, 48425), (545, 38740), (596, 35425), (650, 32482), (745, 28340), (1090, 19370), (1300, 16241), (1417, 14900), (1490, 14170), (1937, 10900), (2180, 9685), (2725, 7748), (2834, 7450), (2980, 7085), (3725, 5668), (3874, 5450)]