19339516

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1249}}^1$

素因数の和:1346

約数の個数: 36

約数和(自身を含む): 39900000

約数和(自身を除く): 20560484

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 196, 316, 553, 1106, 1249, 2212, 2498, 3871, 4996, 7742, 8743, 15484, 17486, 34972, 61201, 98671, 122402, 197342, 244804, 394684, 690697, 1381394, 2762788, 4834879, 9669758, 19339516]

約数ペア:

[(1, 19339516), (2, 9669758), (4, 4834879), (7, 2762788), (14, 1381394), (28, 690697), (49, 394684), (79, 244804), (98, 197342), (158, 122402), (196, 98671), (316, 61201), (553, 34972), (1106, 17486), (1249, 15484), (2212, 8743), (2498, 7742), (3871, 4996)]