21588260

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 48045312

約数和(自身を除く): 26457052

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 661, 710, 1322, 1420, 1633, 2644, 3266, 3305, 6532, 6610, 8165, 13220, 15203, 16330, 30406, 32660, 46931, 60812, 76015, 93862, 152030, 187724, 234655, 304060, 469310, 938620, 1079413, 2158826, 4317652, 5397065, 10794130, 21588260]

約数ペア:

[(1, 21588260), (2, 10794130), (4, 5397065), (5, 4317652), (10, 2158826), (20, 1079413), (23, 938620), (46, 469310), (71, 304060), (92, 234655), (115, 187724), (142, 152030), (230, 93862), (284, 76015), (355, 60812), (460, 46931), (661, 32660), (710, 30406), (1322, 16330), (1420, 15203), (1633, 13220), (2644, 8165), (3266, 6610), (3305, 6532)]