221661635

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 306343296

約数和(自身を除く): 84681661

約数列:

[1, 5, 13, 37, 47, 53, 65, 185, 235, 265, 481, 611, 689, 1369, 1739, 1961, 2405, 2491, 3055, 3445, 6845, 8695, 9805, 12455, 17797, 22607, 25493, 32383, 64343, 72557, 88985, 92167, 113035, 127465, 161915, 321715, 362785, 460835, 836459, 943241, 1198171, 3410179, 4182295, 4716205, 5990855, 17050895, 44332327, 221661635]

約数ペア:

[(1, 221661635), (5, 44332327), (13, 17050895), (37, 5990855), (47, 4716205), (53, 4182295), (65, 3410179), (185, 1198171), (235, 943241), (265, 836459), (481, 460835), (611, 362785), (689, 321715), (1369, 161915), (1739, 127465), (1961, 113035), (2405, 92167), (2491, 88985), (3055, 72557), (3445, 64343), (6845, 32383), (8695, 25493), (9805, 22607), (12455, 17797)]