21751920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30211}}^1$

素因数の和:30230

約数の個数: 60

約数和(自身を含む): 73052616

約数和(自身を除く): 51300696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30211, 60422, 90633, 120844, 151055, 181266, 241688, 271899, 302110, 362532, 453165, 483376, 543798, 604220, 725064, 906330, 1087596, 1208440, 1359495, 1450128, 1812660, 2175192, 2416880, 2718990, 3625320, 4350384, 5437980, 7250640, 10875960, 21751920]

約数ペア:

[(1, 21751920), (2, 10875960), (3, 7250640), (4, 5437980), (5, 4350384), (6, 3625320), (8, 2718990), (9, 2416880), (10, 2175192), (12, 1812660), (15, 1450128), (16, 1359495), (18, 1208440), (20, 1087596), (24, 906330), (30, 725064), (36, 604220), (40, 543798), (45, 483376), (48, 453165), (60, 362532), (72, 302110), (80, 271899), (90, 241688), (120, 181266), (144, 151055), (180, 120844), (240, 90633), (360, 60422), (720, 30211)]