21193856

素因数分解:

$2^7\times {\mathrm{23}}^2\times {\mathrm{313}}^1$

素因数の和:373

約数の個数: 48

約数和(自身を含む): 44278710

約数和(自身を除く): 23084854

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 313, 368, 529, 626, 736, 1058, 1252, 1472, 2116, 2504, 2944, 4232, 5008, 7199, 8464, 10016, 14398, 16928, 20032, 28796, 33856, 40064, 57592, 67712, 115184, 165577, 230368, 331154, 460736, 662308, 921472, 1324616, 2649232, 5298464, 10596928, 21193856]

約数ペア:

[(1, 21193856), (2, 10596928), (4, 5298464), (8, 2649232), (16, 1324616), (23, 921472), (32, 662308), (46, 460736), (64, 331154), (92, 230368), (128, 165577), (184, 115184), (313, 67712), (368, 57592), (529, 40064), (626, 33856), (736, 28796), (1058, 20032), (1252, 16928), (1472, 14398), (2116, 10016), (2504, 8464), (2944, 7199), (4232, 5008)]