18897788

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{269}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 41065920

約数和(自身を除く): 22168132

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 193, 269, 364, 386, 538, 772, 1076, 1351, 1883, 2509, 2702, 3497, 3766, 5018, 5404, 6994, 7532, 10036, 13988, 17563, 24479, 35126, 48958, 51917, 70252, 97916, 103834, 207668, 363419, 674921, 726838, 1349842, 1453676, 2699684, 4724447, 9448894, 18897788]

約数ペア:

[(1, 18897788), (2, 9448894), (4, 4724447), (7, 2699684), (13, 1453676), (14, 1349842), (26, 726838), (28, 674921), (52, 363419), (91, 207668), (182, 103834), (193, 97916), (269, 70252), (364, 51917), (386, 48958), (538, 35126), (772, 24479), (1076, 17563), (1351, 13988), (1883, 10036), (2509, 7532), (2702, 6994), (3497, 5404), (3766, 5018)]