20587904

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{3923}}^1$

素因数の和:3978

約数の個数: 32

約数和(自身を含む): 42026040

約数和(自身を除く): 21438136

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 328, 656, 1312, 2624, 3923, 5248, 7846, 15692, 31384, 62768, 125536, 160843, 251072, 321686, 502144, 643372, 1286744, 2573488, 5146976, 10293952, 20587904]

約数ペア:

[(1, 20587904), (2, 10293952), (4, 5146976), (8, 2573488), (16, 1286744), (32, 643372), (41, 502144), (64, 321686), (82, 251072), (128, 160843), (164, 125536), (328, 62768), (656, 31384), (1312, 15692), (2624, 7846), (3923, 5248)]