21000228248

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1\times {\mathrm{10427}}^1$

素因数の和:10760

約数の個数: 64

約数和(自身を含む): 42571267200

約数和(自身を除く): 21571038952

約数列:

[1, 2, 4, 8, 17, 34, 59, 68, 118, 136, 236, 251, 472, 502, 1003, 1004, 2006, 2008, 4012, 4267, 8024, 8534, 10427, 14809, 17068, 20854, 29618, 34136, 41708, 59236, 83416, 118472, 177259, 251753, 354518, 503506, 615193, 709036, 1007012, 1230386, 1418072, 2014024, 2460772, 2617177, 4921544, 5234354, 10458281, 10468708, 20916562, 20937416, 41833124, 44492009, 83666248, 88984018, 154413443, 177968036, 308826886, 355936072, 617653772, 1235307544, 2625028531, 5250057062, 10500114124, 21000228248]

約数ペア:

[(1, 21000228248), (2, 10500114124), (4, 5250057062), (8, 2625028531), (17, 1235307544), (34, 617653772), (59, 355936072), (68, 308826886), (118, 177968036), (136, 154413443), (236, 88984018), (251, 83666248), (472, 44492009), (502, 41833124), (1003, 20937416), (1004, 20916562), (2006, 10468708), (2008, 10458281), (4012, 5234354), (4267, 4921544), (8024, 2617177), (8534, 2460772), (10427, 2014024), (14809, 1418072), (17068, 1230386), (20854, 1007012), (29618, 709036), (34136, 615193), (41708, 503506), (59236, 354518), (83416, 251753), (118472, 177259)]