21123150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{2657}}^1$

素因数の和:2725

約数の個数: 48

約数和(自身を含む): 53393904

約数和(自身を除く): 32270754

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 53, 75, 106, 150, 159, 265, 318, 530, 795, 1325, 1590, 2650, 2657, 3975, 5314, 7950, 7971, 13285, 15942, 26570, 39855, 66425, 79710, 132850, 140821, 199275, 281642, 398550, 422463, 704105, 844926, 1408210, 2112315, 3520525, 4224630, 7041050, 10561575, 21123150]

約数ペア:

[(1, 21123150), (2, 10561575), (3, 7041050), (5, 4224630), (6, 3520525), (10, 2112315), (15, 1408210), (25, 844926), (30, 704105), (50, 422463), (53, 398550), (75, 281642), (106, 199275), (150, 140821), (159, 132850), (265, 79710), (318, 66425), (530, 39855), (795, 26570), (1325, 15942), (1590, 13285), (2650, 7971), (2657, 7950), (3975, 5314)]