21551207426

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1931}}^1\times {\mathrm{10091}}^1$

素因数の和:12110

約数の個数: 32

約数和(自身を含む): 37435668480

約数和(自身を除く): 15884461054

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 1931, 3862, 10091, 13517, 20182, 27034, 70637, 141274, 152549, 305098, 797189, 1067843, 1594378, 2135686, 5580323, 11160646, 19485721, 38971442, 136400047, 272800094, 1539371959, 3078743918, 10775603713, 21551207426]

約数ペア:

[(1, 21551207426), (2, 10775603713), (7, 3078743918), (14, 1539371959), (79, 272800094), (158, 136400047), (553, 38971442), (1106, 19485721), (1931, 11160646), (3862, 5580323), (10091, 2135686), (13517, 1594378), (20182, 1067843), (27034, 797189), (70637, 305098), (141274, 152549)]