211977556

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1997}}^1$

素因数の和:2248

約数の個数: 48

約数和(自身を含む): 451132416

約数和(自身を除く): 239154860

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 223, 238, 446, 476, 892, 1561, 1997, 3122, 3791, 3994, 6244, 7582, 7988, 13979, 15164, 26537, 27958, 33949, 53074, 55916, 67898, 106148, 135796, 237643, 445331, 475286, 890662, 950572, 1781324, 3117317, 6234634, 7570627, 12469268, 15141254, 30282508, 52994389, 105988778, 211977556]

約数ペア:

[(1, 211977556), (2, 105988778), (4, 52994389), (7, 30282508), (14, 15141254), (17, 12469268), (28, 7570627), (34, 6234634), (68, 3117317), (119, 1781324), (223, 950572), (238, 890662), (446, 475286), (476, 445331), (892, 237643), (1561, 135796), (1997, 106148), (3122, 67898), (3791, 55916), (3994, 53074), (6244, 33949), (7582, 27958), (7988, 26537), (13979, 15164)]