21086048

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 23265952

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 79, 152, 158, 304, 316, 439, 608, 632, 878, 1264, 1501, 1756, 2528, 3002, 3512, 6004, 7024, 8341, 12008, 14048, 16682, 24016, 33364, 34681, 48032, 66728, 69362, 133456, 138724, 266912, 277448, 554896, 658939, 1109792, 1317878, 2635756, 5271512, 10543024, 21086048]

約数ペア:

[(1, 21086048), (2, 10543024), (4, 5271512), (8, 2635756), (16, 1317878), (19, 1109792), (32, 658939), (38, 554896), (76, 277448), (79, 266912), (152, 138724), (158, 133456), (304, 69362), (316, 66728), (439, 48032), (608, 34681), (632, 33364), (878, 24016), (1264, 16682), (1501, 14048), (1756, 12008), (2528, 8341), (3002, 7024), (3512, 6004)]