21111536

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:473

約数の個数: 40

約数和(自身を含む): 42720480

約数和(自身を除く): 21608944

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 173, 232, 263, 346, 464, 526, 692, 1052, 1384, 2104, 2768, 4208, 5017, 7627, 10034, 15254, 20068, 30508, 40136, 45499, 61016, 80272, 90998, 122032, 181996, 363992, 727984, 1319471, 2638942, 5277884, 10555768, 21111536]

約数ペア:

[(1, 21111536), (2, 10555768), (4, 5277884), (8, 2638942), (16, 1319471), (29, 727984), (58, 363992), (116, 181996), (173, 122032), (232, 90998), (263, 80272), (346, 61016), (464, 45499), (526, 40136), (692, 30508), (1052, 20068), (1384, 15254), (2104, 10034), (2768, 7627), (4208, 5017)]