21490692091

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{3881}}^1$

素因数の和:4467

約数の個数: 32

約数和(自身を含む): 25088279040

約数和(自身を除く): 3597586949

約数列:

[1, 11, 23, 43, 253, 473, 509, 989, 3881, 5599, 10879, 11707, 21887, 42691, 89263, 128777, 166883, 240757, 503401, 981893, 1835713, 1975429, 3838309, 5537411, 21729719, 42221399, 45434867, 84943447, 499783537, 934377917, 1953699281, 21490692091]

約数ペア:

[(1, 21490692091), (11, 1953699281), (23, 934377917), (43, 499783537), (253, 84943447), (473, 45434867), (509, 42221399), (989, 21729719), (3881, 5537411), (5599, 3838309), (10879, 1975429), (11707, 1835713), (21887, 981893), (42691, 503401), (89263, 240757), (128777, 166883)]