21756168

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{14389}}^1$

素因数の和:14411

約数の個数: 64

約数和(自身を含む): 69072000

約数和(自身を除く): 47315832

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 14389, 28778, 43167, 57556, 86334, 100723, 115112, 129501, 172668, 201446, 259002, 302169, 345336, 388503, 402892, 518004, 604338, 777006, 805784, 906507, 1036008, 1208676, 1554012, 1813014, 2417352, 2719521, 3108024, 3626028, 5439042, 7252056, 10878084, 21756168]

約数ペア:

[(1, 21756168), (2, 10878084), (3, 7252056), (4, 5439042), (6, 3626028), (7, 3108024), (8, 2719521), (9, 2417352), (12, 1813014), (14, 1554012), (18, 1208676), (21, 1036008), (24, 906507), (27, 805784), (28, 777006), (36, 604338), (42, 518004), (54, 402892), (56, 388503), (63, 345336), (72, 302169), (84, 259002), (108, 201446), (126, 172668), (168, 129501), (189, 115112), (216, 100723), (252, 86334), (378, 57556), (504, 43167), (756, 28778), (1512, 14389)]