20921408

素因数分解:

$2^6\times {\mathrm{89}}^1\times {\mathrm{3673}}^1$

素因数の和:3774

約数の個数: 28

約数和(自身を含む): 41993820

約数和(自身を除く): 21072412

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 178, 356, 712, 1424, 2848, 3673, 5696, 7346, 14692, 29384, 58768, 117536, 235072, 326897, 653794, 1307588, 2615176, 5230352, 10460704, 20921408]

約数ペア:

[(1, 20921408), (2, 10460704), (4, 5230352), (8, 2615176), (16, 1307588), (32, 653794), (64, 326897), (89, 235072), (178, 117536), (356, 58768), (712, 29384), (1424, 14692), (2848, 7346), (3673, 5696)]