19274493

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 32248320

約数和(自身を除く): 12973827

約数列:

[1, 3, 7, 19, 21, 49, 57, 67, 103, 133, 147, 201, 309, 399, 469, 721, 931, 1273, 1407, 1957, 2163, 2793, 3283, 3819, 5047, 5871, 6901, 8911, 9849, 13699, 15141, 20703, 26733, 41097, 48307, 62377, 95893, 131119, 144921, 187131, 287679, 338149, 393357, 917833, 1014447, 2753499, 6424831, 19274493]

約数ペア:

[(1, 19274493), (3, 6424831), (7, 2753499), (19, 1014447), (21, 917833), (49, 393357), (57, 338149), (67, 287679), (103, 187131), (133, 144921), (147, 131119), (201, 95893), (309, 62377), (399, 48307), (469, 41097), (721, 26733), (931, 20703), (1273, 15141), (1407, 13699), (1957, 9849), (2163, 8911), (2793, 6901), (3283, 5871), (3819, 5047)]