20834944

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 47124000

約数和(自身を除く): 26289056

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 608, 659, 832, 988, 1216, 1318, 1664, 1976, 2432, 2636, 3952, 5272, 7904, 8567, 10544, 12521, 15808, 17134, 21088, 25042, 31616, 34268, 42176, 50084, 68536, 84352, 100168, 137072, 162773, 200336, 274144, 325546, 400672, 548288, 651092, 801344, 1096576, 1302184, 1602688, 2604368, 5208736, 10417472, 20834944]

約数ペア:

[(1, 20834944), (2, 10417472), (4, 5208736), (8, 2604368), (13, 1602688), (16, 1302184), (19, 1096576), (26, 801344), (32, 651092), (38, 548288), (52, 400672), (64, 325546), (76, 274144), (104, 200336), (128, 162773), (152, 137072), (208, 100168), (247, 84352), (304, 68536), (416, 50084), (494, 42176), (608, 34268), (659, 31616), (832, 25042), (988, 21088), (1216, 17134), (1318, 15808), (1664, 12521), (1976, 10544), (2432, 8567), (2636, 7904), (3952, 5272)]