217295253

素因数分解:

$3^2\times 7^2\times {\mathrm{373}}^1\times {\mathrm{1321}}^1$

素因数の和:1714

約数の個数: 36

約数和(自身を含む): 366371148

約数和(自身を除く): 149075895

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 373, 441, 1119, 1321, 2611, 3357, 3963, 7833, 9247, 11889, 18277, 23499, 27741, 54831, 64729, 83223, 164493, 194187, 492733, 582561, 1478199, 3449131, 4434597, 10347393, 24143917, 31042179, 72431751, 217295253]

約数ペア:

[(1, 217295253), (3, 72431751), (7, 31042179), (9, 24143917), (21, 10347393), (49, 4434597), (63, 3449131), (147, 1478199), (373, 582561), (441, 492733), (1119, 194187), (1321, 164493), (2611, 83223), (3357, 64729), (3963, 54831), (7833, 27741), (9247, 23499), (11889, 18277)]