20210888916

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{265193}}^1$

素因数の和:265305

約数の個数: 72

約数和(自身を含む): 53574491880

約数和(自身を除く): 33363602964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 73, 87, 116, 146, 174, 219, 261, 292, 348, 438, 522, 657, 876, 1044, 1314, 2117, 2628, 4234, 6351, 8468, 12702, 19053, 25404, 38106, 76212, 265193, 530386, 795579, 1060772, 1591158, 2386737, 3182316, 4773474, 7690597, 9546948, 15381194, 19359089, 23071791, 30762388, 38718178, 46143582, 58077267, 69215373, 77436356, 92287164, 116154534, 138430746, 174231801, 232309068, 276861492, 348463602, 561413581, 696927204, 1122827162, 1684240743, 2245654324, 3368481486, 5052722229, 6736962972, 10105444458, 20210888916]

約数ペア:

[(1, 20210888916), (2, 10105444458), (3, 6736962972), (4, 5052722229), (6, 3368481486), (9, 2245654324), (12, 1684240743), (18, 1122827162), (29, 696927204), (36, 561413581), (58, 348463602), (73, 276861492), (87, 232309068), (116, 174231801), (146, 138430746), (174, 116154534), (219, 92287164), (261, 77436356), (292, 69215373), (348, 58077267), (438, 46143582), (522, 38718178), (657, 30762388), (876, 23071791), (1044, 19359089), (1314, 15381194), (2117, 9546948), (2628, 7690597), (4234, 4773474), (6351, 3182316), (8468, 2386737), (12702, 1591158), (19053, 1060772), (25404, 795579), (38106, 530386), (76212, 265193)]