18647512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9437}}^1$

素因数の和:9475

約数の個数: 32

約数和(自身を含む): 39639600

約数和(自身を除く): 20992088

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9437, 18874, 37748, 75496, 122681, 179303, 245362, 358606, 490724, 717212, 981448, 1434424, 2330939, 4661878, 9323756, 18647512]

約数ペア:

[(1, 18647512), (2, 9323756), (4, 4661878), (8, 2330939), (13, 1434424), (19, 981448), (26, 717212), (38, 490724), (52, 358606), (76, 245362), (104, 179303), (152, 122681), (247, 75496), (494, 37748), (988, 18874), (1976, 9437)]