21991879024

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{273967}}^1$

素因数の和:274177

約数の個数: 40

約数和(自身を含む): 44333501760

約数和(自身を除く): 22341622736

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 173, 232, 346, 464, 692, 1384, 2768, 5017, 10034, 20068, 40136, 80272, 273967, 547934, 1095868, 2191736, 4383472, 7945043, 15890086, 31780172, 47396291, 63560344, 94792582, 127120688, 189585164, 379170328, 758340656, 1374492439, 2748984878, 5497969756, 10995939512, 21991879024]

約数ペア:

[(1, 21991879024), (2, 10995939512), (4, 5497969756), (8, 2748984878), (16, 1374492439), (29, 758340656), (58, 379170328), (116, 189585164), (173, 127120688), (232, 94792582), (346, 63560344), (464, 47396291), (692, 31780172), (1384, 15890086), (2768, 7945043), (5017, 4383472), (10034, 2191736), (20068, 1095868), (40136, 547934), (80272, 273967)]