217403774

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{12739}}^1$

素因数の和:12824

約数の個数: 32

約数和(自身を含む): 396264960

約数和(自身を除く): 178861186

約数列:

[1, 2, 7, 14, 23, 46, 53, 106, 161, 322, 371, 742, 1219, 2438, 8533, 12739, 17066, 25478, 89173, 178346, 292997, 585994, 675167, 1350334, 2050979, 4101958, 4726169, 9452338, 15528841, 31057682, 108701887, 217403774]

約数ペア:

[(1, 217403774), (2, 108701887), (7, 31057682), (14, 15528841), (23, 9452338), (46, 4726169), (53, 4101958), (106, 2050979), (161, 1350334), (322, 675167), (371, 585994), (742, 292997), (1219, 178346), (2438, 89173), (8533, 25478), (12739, 17066)]