21397104

素因数分解:

$2^4\times 3^2\times {\mathrm{139}}^1\times {\mathrm{1069}}^1$

素因数の和:1222

約数の個数: 60

約数和(自身を含む): 60369400

約数和(自身を除く): 38972296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 139, 144, 278, 417, 556, 834, 1069, 1112, 1251, 1668, 2138, 2224, 2502, 3207, 3336, 4276, 5004, 6414, 6672, 8552, 9621, 10008, 12828, 17104, 19242, 20016, 25656, 38484, 51312, 76968, 148591, 153936, 297182, 445773, 594364, 891546, 1188728, 1337319, 1783092, 2377456, 2674638, 3566184, 5349276, 7132368, 10698552, 21397104]

約数ペア:

[(1, 21397104), (2, 10698552), (3, 7132368), (4, 5349276), (6, 3566184), (8, 2674638), (9, 2377456), (12, 1783092), (16, 1337319), (18, 1188728), (24, 891546), (36, 594364), (48, 445773), (72, 297182), (139, 153936), (144, 148591), (278, 76968), (417, 51312), (556, 38484), (834, 25656), (1069, 20016), (1112, 19242), (1251, 17104), (1668, 12828), (2138, 10008), (2224, 9621), (2502, 8552), (3207, 6672), (3336, 6414), (4276, 5004)]