19885888

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:671

約数の個数: 56

約数和(自身を含む): 44037504

約数和(自身を除く): 24151616

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 64, 88, 94, 176, 188, 352, 376, 517, 601, 704, 752, 1034, 1202, 1504, 2068, 2404, 3008, 4136, 4808, 6611, 8272, 9616, 13222, 16544, 19232, 26444, 28247, 33088, 38464, 52888, 56494, 105776, 112988, 211552, 225976, 310717, 423104, 451952, 621434, 903904, 1242868, 1807808, 2485736, 4971472, 9942944, 19885888]

約数ペア:

[(1, 19885888), (2, 9942944), (4, 4971472), (8, 2485736), (11, 1807808), (16, 1242868), (22, 903904), (32, 621434), (44, 451952), (47, 423104), (64, 310717), (88, 225976), (94, 211552), (176, 112988), (188, 105776), (352, 56494), (376, 52888), (517, 38464), (601, 33088), (704, 28247), (752, 26444), (1034, 19232), (1202, 16544), (1504, 13222), (2068, 9616), (2404, 8272), (3008, 6611), (4136, 4808)]