20403864

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21799}}^1$

素因数の和:21824

約数の個数: 48

約数和(自身を含む): 59514000

約数和(自身を除く): 39110136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21799, 43598, 65397, 87196, 130794, 174392, 196191, 261588, 283387, 392382, 523176, 566774, 784764, 850161, 1133548, 1569528, 1700322, 2267096, 2550483, 3400644, 5100966, 6801288, 10201932, 20403864]

約数ペア:

[(1, 20403864), (2, 10201932), (3, 6801288), (4, 5100966), (6, 3400644), (8, 2550483), (9, 2267096), (12, 1700322), (13, 1569528), (18, 1133548), (24, 850161), (26, 784764), (36, 566774), (39, 523176), (52, 392382), (72, 283387), (78, 261588), (104, 196191), (117, 174392), (156, 130794), (234, 87196), (312, 65397), (468, 43598), (936, 21799)]