21086024900

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{601}}^1\times {\mathrm{3617}}^1$

素因数の和:4329

約数の個数: 72

約数和(自身を含む): 46318113576

約数和(自身を除く): 25232088676

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 601, 970, 1202, 1940, 2404, 2425, 3005, 3617, 4850, 6010, 7234, 9700, 12020, 14468, 15025, 18085, 30050, 36170, 58297, 60100, 72340, 90425, 116594, 180850, 233188, 291485, 350849, 361700, 582970, 701698, 1165940, 1403396, 1457425, 1754245, 2173817, 2914850, 3508490, 4347634, 5829700, 7016980, 8695268, 8771225, 10869085, 17542450, 21738170, 35084900, 43476340, 54345425, 108690850, 210860249, 217381700, 421720498, 843440996, 1054301245, 2108602490, 4217204980, 5271506225, 10543012450, 21086024900]

約数ペア:

[(1, 21086024900), (2, 10543012450), (4, 5271506225), (5, 4217204980), (10, 2108602490), (20, 1054301245), (25, 843440996), (50, 421720498), (97, 217381700), (100, 210860249), (194, 108690850), (388, 54345425), (485, 43476340), (601, 35084900), (970, 21738170), (1202, 17542450), (1940, 10869085), (2404, 8771225), (2425, 8695268), (3005, 7016980), (3617, 5829700), (4850, 4347634), (6010, 3508490), (7234, 2914850), (9700, 2173817), (12020, 1754245), (14468, 1457425), (15025, 1403396), (18085, 1165940), (30050, 701698), (36170, 582970), (58297, 361700), (60100, 350849), (72340, 291485), (90425, 233188), (116594, 180850)]