21214844

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6367}}^1$

素因数の和:6402

約数の個数: 36

約数和(自身を含む): 45734976

約数和(自身を除く): 24520132

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 833, 1666, 3332, 6367, 12734, 25468, 44569, 89138, 108239, 178276, 216478, 311983, 432956, 623966, 757673, 1247932, 1515346, 3030692, 5303711, 10607422, 21214844]

約数ペア:

[(1, 21214844), (2, 10607422), (4, 5303711), (7, 3030692), (14, 1515346), (17, 1247932), (28, 757673), (34, 623966), (49, 432956), (68, 311983), (98, 216478), (119, 178276), (196, 108239), (238, 89138), (476, 44569), (833, 25468), (1666, 12734), (3332, 6367)]