20971888

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3533}}^1$

素因数の和:3601

約数の個数: 40

約数和(自身を含む): 47327328

約数和(自身を除く): 26355440

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 212, 371, 424, 742, 848, 1484, 2968, 3533, 5936, 7066, 14132, 24731, 28264, 49462, 56528, 98924, 187249, 197848, 374498, 395696, 748996, 1310743, 1497992, 2621486, 2995984, 5242972, 10485944, 20971888]

約数ペア:

[(1, 20971888), (2, 10485944), (4, 5242972), (7, 2995984), (8, 2621486), (14, 1497992), (16, 1310743), (28, 748996), (53, 395696), (56, 374498), (106, 197848), (112, 187249), (212, 98924), (371, 56528), (424, 49462), (742, 28264), (848, 24731), (1484, 14132), (2968, 7066), (3533, 5936)]