21612180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15661}}^1$

素因数の和:15696

約数の個数: 48

約数和(自身を含む): 63149184

約数和(自身を除く): 41537004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15661, 31322, 46983, 62644, 78305, 93966, 156610, 187932, 234915, 313220, 360203, 469830, 720406, 939660, 1080609, 1440812, 1801015, 2161218, 3602030, 4322436, 5403045, 7204060, 10806090, 21612180]

約数ペア:

[(1, 21612180), (2, 10806090), (3, 7204060), (4, 5403045), (5, 4322436), (6, 3602030), (10, 2161218), (12, 1801015), (15, 1440812), (20, 1080609), (23, 939660), (30, 720406), (46, 469830), (60, 360203), (69, 313220), (92, 234915), (115, 187932), (138, 156610), (230, 93966), (276, 78305), (345, 62644), (460, 46983), (690, 31322), (1380, 15661)]