28358127

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 23481873

約数列:

[1, 3, 7, 9, 19, 21, 27, 53, 57, 63, 133, 149, 159, 171, 189, 371, 399, 447, 477, 513, 1007, 1043, 1113, 1197, 1341, 1431, 2831, 3021, 3129, 3339, 3591, 4023, 7049, 7897, 8493, 9063, 9387, 10017, 19817, 21147, 23691, 25479, 27189, 28161, 55279, 59451, 63441, 71073, 76437, 150043, 165837, 178353, 190323, 213219, 450129, 497511, 535059, 1050301, 1350387, 1492533, 3150903, 4051161, 9452709, 28358127]

約数ペア:

[(1, 28358127), (3, 9452709), (7, 4051161), (9, 3150903), (19, 1492533), (21, 1350387), (27, 1050301), (53, 535059), (57, 497511), (63, 450129), (133, 213219), (149, 190323), (159, 178353), (171, 165837), (189, 150043), (371, 76437), (399, 71073), (447, 63441), (477, 59451), (513, 55279), (1007, 28161), (1043, 27189), (1113, 25479), (1197, 23691), (1341, 21147), (1431, 19817), (2831, 10017), (3021, 9387), (3129, 9063), (3339, 8493), (3591, 7897), (4023, 7049)]