20450898

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 52009776

約数和(自身を除く): 31558878

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 53, 78, 97, 102, 106, 117, 153, 159, 194, 221, 234, 291, 306, 318, 442, 477, 582, 663, 689, 873, 901, 954, 1261, 1326, 1378, 1649, 1746, 1802, 1989, 2067, 2522, 2703, 3298, 3783, 3978, 4134, 4947, 5141, 5406, 6201, 7566, 8109, 9894, 10282, 11349, 11713, 12402, 14841, 15423, 16218, 21437, 22698, 23426, 29682, 30846, 35139, 42874, 46269, 64311, 66833, 70278, 87397, 92538, 105417, 128622, 133666, 174794, 192933, 200499, 210834, 262191, 385866, 400998, 524382, 601497, 786573, 1136161, 1202994, 1573146, 2272322, 3408483, 6816966, 10225449, 20450898]

約数ペア:

[(1, 20450898), (2, 10225449), (3, 6816966), (6, 3408483), (9, 2272322), (13, 1573146), (17, 1202994), (18, 1136161), (26, 786573), (34, 601497), (39, 524382), (51, 400998), (53, 385866), (78, 262191), (97, 210834), (102, 200499), (106, 192933), (117, 174794), (153, 133666), (159, 128622), (194, 105417), (221, 92538), (234, 87397), (291, 70278), (306, 66833), (318, 64311), (442, 46269), (477, 42874), (582, 35139), (663, 30846), (689, 29682), (873, 23426), (901, 22698), (954, 21437), (1261, 16218), (1326, 15423), (1378, 14841), (1649, 12402), (1746, 11713), (1802, 11349), (1989, 10282), (2067, 9894), (2522, 8109), (2703, 7566), (3298, 6201), (3783, 5406), (3978, 5141), (4134, 4947)]