19928212

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 38247552

約数和(自身を除く): 18319340

約数列:

[1, 2, 4, 23, 46, 53, 61, 67, 92, 106, 122, 134, 212, 244, 268, 1219, 1403, 1541, 2438, 2806, 3082, 3233, 3551, 4087, 4876, 5612, 6164, 6466, 7102, 8174, 12932, 14204, 16348, 74359, 81673, 94001, 148718, 163346, 188002, 216611, 297436, 326692, 376004, 433222, 866444, 4982053, 9964106, 19928212]

約数ペア:

[(1, 19928212), (2, 9964106), (4, 4982053), (23, 866444), (46, 433222), (53, 376004), (61, 326692), (67, 297436), (92, 216611), (106, 188002), (122, 163346), (134, 148718), (212, 94001), (244, 81673), (268, 74359), (1219, 16348), (1403, 14204), (1541, 12932), (2438, 8174), (2806, 7102), (3082, 6466), (3233, 6164), (3551, 5612), (4087, 4876)]