19817072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1033}}^1$

素因数の和:1161

約数の個数: 40

約数和(自身を含む): 42311280

約数和(自身を除く): 22494208

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 109, 176, 218, 436, 872, 1033, 1199, 1744, 2066, 2398, 4132, 4796, 8264, 9592, 11363, 16528, 19184, 22726, 45452, 90904, 112597, 181808, 225194, 450388, 900776, 1238567, 1801552, 2477134, 4954268, 9908536, 19817072]

約数ペア:

[(1, 19817072), (2, 9908536), (4, 4954268), (8, 2477134), (11, 1801552), (16, 1238567), (22, 900776), (44, 450388), (88, 225194), (109, 181808), (176, 112597), (218, 90904), (436, 45452), (872, 22726), (1033, 19184), (1199, 16528), (1744, 11363), (2066, 9592), (2398, 8264), (4132, 4796)]