18915498

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{307}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 48491520

約数和(自身を除く): 29576022

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 163, 189, 307, 326, 378, 489, 614, 921, 978, 1141, 1467, 1842, 2149, 2282, 2763, 2934, 3423, 4298, 4401, 5526, 6447, 6846, 8289, 8802, 10269, 12894, 16578, 19341, 20538, 30807, 38682, 50041, 58023, 61614, 100082, 116046, 150123, 300246, 350287, 450369, 700574, 900738, 1050861, 1351107, 2101722, 2702214, 3152583, 6305166, 9457749, 18915498]

約数ペア:

[(1, 18915498), (2, 9457749), (3, 6305166), (6, 3152583), (7, 2702214), (9, 2101722), (14, 1351107), (18, 1050861), (21, 900738), (27, 700574), (42, 450369), (54, 350287), (63, 300246), (126, 150123), (163, 116046), (189, 100082), (307, 61614), (326, 58023), (378, 50041), (489, 38682), (614, 30807), (921, 20538), (978, 19341), (1141, 16578), (1467, 12894), (1842, 10269), (2149, 8802), (2282, 8289), (2763, 6846), (2934, 6447), (3423, 5526), (4298, 4401)]