21000638850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3255913}}^1$

素因数の和:3255971

約数の個数: 48

約数和(自身を含む): 53292800352

約数和(自身を除く): 32292161502

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 129, 150, 215, 258, 430, 645, 1075, 1290, 2150, 3225, 6450, 3255913, 6511826, 9767739, 16279565, 19535478, 32559130, 48838695, 81397825, 97677390, 140004259, 162795650, 244193475, 280008518, 420012777, 488386950, 700021295, 840025554, 1400042590, 2100063885, 3500106475, 4200127770, 7000212950, 10500319425, 21000638850]

約数ペア:

[(1, 21000638850), (2, 10500319425), (3, 7000212950), (5, 4200127770), (6, 3500106475), (10, 2100063885), (15, 1400042590), (25, 840025554), (30, 700021295), (43, 488386950), (50, 420012777), (75, 280008518), (86, 244193475), (129, 162795650), (150, 140004259), (215, 97677390), (258, 81397825), (430, 48838695), (645, 32559130), (1075, 19535478), (1290, 16279565), (2150, 9767739), (3225, 6511826), (6450, 3255913)]