21531170

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{751}}^1$

素因数の和:866

約数の個数: 32

約数和(自身を含む): 40283136

約数和(自身を除く): 18751966

約数列:

[1, 2, 5, 10, 47, 61, 94, 122, 235, 305, 470, 610, 751, 1502, 2867, 3755, 5734, 7510, 14335, 28670, 35297, 45811, 70594, 91622, 176485, 229055, 352970, 458110, 2153117, 4306234, 10765585, 21531170]

約数ペア:

[(1, 21531170), (2, 10765585), (5, 4306234), (10, 2153117), (47, 458110), (61, 352970), (94, 229055), (122, 176485), (235, 91622), (305, 70594), (470, 45811), (610, 35297), (751, 28670), (1502, 14335), (2867, 7510), (3755, 5734)]