21000252714

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{397}}^1\times {\mathrm{179923}}^1$

素因数の和:180339

約数の個数: 48

約数和(自身を含む): 48981070368

約数和(自身を除く): 27980817654

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 397, 794, 1191, 2382, 2779, 5558, 8337, 16674, 19453, 38906, 58359, 116718, 179923, 359846, 539769, 1079538, 1259461, 2518922, 3778383, 7556766, 8816227, 17632454, 26448681, 52897362, 71429431, 142858862, 214288293, 428576586, 500006017, 1000012034, 1500018051, 3000036102, 3500042119, 7000084238, 10500126357, 21000252714]

約数ペア:

[(1, 21000252714), (2, 10500126357), (3, 7000084238), (6, 3500042119), (7, 3000036102), (14, 1500018051), (21, 1000012034), (42, 500006017), (49, 428576586), (98, 214288293), (147, 142858862), (294, 71429431), (397, 52897362), (794, 26448681), (1191, 17632454), (2382, 8816227), (2779, 7556766), (5558, 3778383), (8337, 2518922), (16674, 1259461), (19453, 1079538), (38906, 539769), (58359, 359846), (116718, 179923)]