21401744

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14699}}^1$

素因数の和:14727

約数の個数: 40

約数和(自身を含む): 51038400

約数和(自身を除く): 29636656

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14699, 29398, 58796, 102893, 117592, 191087, 205786, 235184, 382174, 411572, 764348, 823144, 1337609, 1528696, 1646288, 2675218, 3057392, 5350436, 10700872, 21401744]

約数ペア:

[(1, 21401744), (2, 10700872), (4, 5350436), (7, 3057392), (8, 2675218), (13, 1646288), (14, 1528696), (16, 1337609), (26, 823144), (28, 764348), (52, 411572), (56, 382174), (91, 235184), (104, 205786), (112, 191087), (182, 117592), (208, 102893), (364, 58796), (728, 29398), (1456, 14699)]