20999016

素因数分解:

$2^3\times 3^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 60021000

約数和(自身を除く): 39021984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 29, 36, 58, 72, 87, 89, 113, 116, 174, 178, 226, 232, 261, 267, 339, 348, 356, 452, 522, 534, 678, 696, 712, 801, 904, 1017, 1044, 1068, 1356, 1602, 2034, 2088, 2136, 2581, 2712, 3204, 3277, 4068, 5162, 6408, 6554, 7743, 8136, 9831, 10057, 10324, 13108, 15486, 19662, 20114, 20648, 23229, 26216, 29493, 30171, 30972, 39324, 40228, 46458, 58986, 60342, 61944, 78648, 80456, 90513, 92916, 117972, 120684, 181026, 185832, 235944, 241368, 291653, 362052, 583306, 724104, 874959, 1166612, 1749918, 2333224, 2624877, 3499836, 5249754, 6999672, 10499508, 20999016]

約数ペア:

[(1, 20999016), (2, 10499508), (3, 6999672), (4, 5249754), (6, 3499836), (8, 2624877), (9, 2333224), (12, 1749918), (18, 1166612), (24, 874959), (29, 724104), (36, 583306), (58, 362052), (72, 291653), (87, 241368), (89, 235944), (113, 185832), (116, 181026), (174, 120684), (178, 117972), (226, 92916), (232, 90513), (261, 80456), (267, 78648), (339, 61944), (348, 60342), (356, 58986), (452, 46458), (522, 40228), (534, 39324), (678, 30972), (696, 30171), (712, 29493), (801, 26216), (904, 23229), (1017, 20648), (1044, 20114), (1068, 19662), (1356, 15486), (1602, 13108), (2034, 10324), (2088, 10057), (2136, 9831), (2581, 8136), (2712, 7743), (3204, 6554), (3277, 6408), (4068, 5162)]