21038776

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12583}}^1$

素因数の和:12619

約数の個数: 32

約数和(自身を含む): 45302400

約数和(自身を除く): 24263624

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12583, 25166, 50332, 100664, 138413, 239077, 276826, 478154, 553652, 956308, 1107304, 1912616, 2629847, 5259694, 10519388, 21038776]

約数ペア:

[(1, 21038776), (2, 10519388), (4, 5259694), (8, 2629847), (11, 1912616), (19, 1107304), (22, 956308), (38, 553652), (44, 478154), (76, 276826), (88, 239077), (152, 138413), (209, 100664), (418, 50332), (836, 25166), (1672, 12583)]