20975528

素因数分解:

$2^3\times 7^2\times {\mathrm{73}}^1\times {\mathrm{733}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 46440180

約数和(自身を除く): 25464652

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 73, 98, 146, 196, 292, 392, 511, 584, 733, 1022, 1466, 2044, 2932, 3577, 4088, 5131, 5864, 7154, 10262, 14308, 20524, 28616, 35917, 41048, 53509, 71834, 107018, 143668, 214036, 287336, 374563, 428072, 749126, 1498252, 2621941, 2996504, 5243882, 10487764, 20975528]

約数ペア:

[(1, 20975528), (2, 10487764), (4, 5243882), (7, 2996504), (8, 2621941), (14, 1498252), (28, 749126), (49, 428072), (56, 374563), (73, 287336), (98, 214036), (146, 143668), (196, 107018), (292, 71834), (392, 53509), (511, 41048), (584, 35917), (733, 28616), (1022, 20524), (1466, 14308), (2044, 10262), (2932, 7154), (3577, 5864), (4088, 5131)]