20794672

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{859}}^1$

素因数の和:973

約数の個数: 40

約数和(自身を含む): 43189200

約数和(自身を除く): 22394528

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 89, 136, 178, 272, 356, 712, 859, 1424, 1513, 1718, 3026, 3436, 6052, 6872, 12104, 13744, 14603, 24208, 29206, 58412, 76451, 116824, 152902, 233648, 305804, 611608, 1223216, 1299667, 2599334, 5198668, 10397336, 20794672]

約数ペア:

[(1, 20794672), (2, 10397336), (4, 5198668), (8, 2599334), (16, 1299667), (17, 1223216), (34, 611608), (68, 305804), (89, 233648), (136, 152902), (178, 116824), (272, 76451), (356, 58412), (712, 29206), (859, 24208), (1424, 14603), (1513, 13744), (1718, 12104), (3026, 6872), (3436, 6052)]