20951456

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 43273440

約数和(自身を除く): 22321984

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 107, 116, 211, 214, 232, 422, 428, 464, 844, 856, 928, 1688, 1712, 3103, 3376, 3424, 6119, 6206, 6752, 12238, 12412, 22577, 24476, 24824, 45154, 48952, 49648, 90308, 97904, 99296, 180616, 195808, 361232, 654733, 722464, 1309466, 2618932, 5237864, 10475728, 20951456]

約数ペア:

[(1, 20951456), (2, 10475728), (4, 5237864), (8, 2618932), (16, 1309466), (29, 722464), (32, 654733), (58, 361232), (107, 195808), (116, 180616), (211, 99296), (214, 97904), (232, 90308), (422, 49648), (428, 48952), (464, 45154), (844, 24824), (856, 24476), (928, 22577), (1688, 12412), (1712, 12238), (3103, 6752), (3376, 6206), (3424, 6119)]