20856984

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{863}}^1$

素因数の和:944

約数の個数: 64

約数和(自身を含む): 55987200

約数和(自身を除く): 35130216

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 53, 57, 76, 106, 114, 152, 159, 212, 228, 318, 424, 456, 636, 863, 1007, 1272, 1726, 2014, 2589, 3021, 3452, 4028, 5178, 6042, 6904, 8056, 10356, 12084, 16397, 20712, 24168, 32794, 45739, 49191, 65588, 91478, 98382, 131176, 137217, 182956, 196764, 274434, 365912, 393528, 548868, 869041, 1097736, 1738082, 2607123, 3476164, 5214246, 6952328, 10428492, 20856984]

約数ペア:

[(1, 20856984), (2, 10428492), (3, 6952328), (4, 5214246), (6, 3476164), (8, 2607123), (12, 1738082), (19, 1097736), (24, 869041), (38, 548868), (53, 393528), (57, 365912), (76, 274434), (106, 196764), (114, 182956), (152, 137217), (159, 131176), (212, 98382), (228, 91478), (318, 65588), (424, 49191), (456, 45739), (636, 32794), (863, 24168), (1007, 20712), (1272, 16397), (1726, 12084), (2014, 10356), (2589, 8056), (3021, 6904), (3452, 6042), (4028, 5178)]