21406700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{577}}^1$

素因数の和:651

約数の個数: 72

約数和(自身を含む): 54184032

約数和(自身を除く): 32777332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 212, 265, 350, 371, 530, 577, 700, 742, 1060, 1154, 1325, 1484, 1855, 2308, 2650, 2885, 3710, 4039, 5300, 5770, 7420, 8078, 9275, 11540, 14425, 16156, 18550, 20195, 28850, 30581, 37100, 40390, 57700, 61162, 80780, 100975, 122324, 152905, 201950, 214067, 305810, 403900, 428134, 611620, 764525, 856268, 1070335, 1529050, 2140670, 3058100, 4281340, 5351675, 10703350, 21406700]

約数ペア:

[(1, 21406700), (2, 10703350), (4, 5351675), (5, 4281340), (7, 3058100), (10, 2140670), (14, 1529050), (20, 1070335), (25, 856268), (28, 764525), (35, 611620), (50, 428134), (53, 403900), (70, 305810), (100, 214067), (106, 201950), (140, 152905), (175, 122324), (212, 100975), (265, 80780), (350, 61162), (371, 57700), (530, 40390), (577, 37100), (700, 30581), (742, 28850), (1060, 20195), (1154, 18550), (1325, 16156), (1484, 14425), (1855, 11540), (2308, 9275), (2650, 8078), (2885, 7420), (3710, 5770), (4039, 5300)]