21663664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1483}}^1$

素因数の和:1585

約数の個数: 40

約数和(自身を含む): 46372032

約数和(自身を除く): 24708368

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1328, 1483, 1826, 2966, 3652, 5932, 7304, 11864, 14608, 16313, 23728, 32626, 65252, 123089, 130504, 246178, 261008, 492356, 984712, 1353979, 1969424, 2707958, 5415916, 10831832, 21663664]

約数ペア:

[(1, 21663664), (2, 10831832), (4, 5415916), (8, 2707958), (11, 1969424), (16, 1353979), (22, 984712), (44, 492356), (83, 261008), (88, 246178), (166, 130504), (176, 123089), (332, 65252), (664, 32626), (913, 23728), (1328, 16313), (1483, 14608), (1826, 11864), (2966, 7304), (3652, 5932)]