19866572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 40303872

約数和(自身を除く): 20437300

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 67, 92, 134, 253, 268, 293, 506, 586, 737, 1012, 1172, 1474, 1541, 2948, 3082, 3223, 6164, 6446, 6739, 12892, 13478, 16951, 19631, 26956, 33902, 39262, 67804, 74129, 78524, 148258, 215941, 296516, 431882, 451513, 863764, 903026, 1806052, 4966643, 9933286, 19866572]

約数ペア:

[(1, 19866572), (2, 9933286), (4, 4966643), (11, 1806052), (22, 903026), (23, 863764), (44, 451513), (46, 431882), (67, 296516), (92, 215941), (134, 148258), (253, 78524), (268, 74129), (293, 67804), (506, 39262), (586, 33902), (737, 26956), (1012, 19631), (1172, 16951), (1474, 13478), (1541, 12892), (2948, 6739), (3082, 6446), (3223, 6164)]