19261305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1301}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 19736199

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 63, 105, 141, 235, 315, 329, 423, 705, 987, 1301, 1645, 2115, 2961, 3903, 4935, 6505, 9107, 11709, 14805, 19515, 27321, 45535, 58545, 61147, 81963, 136605, 183441, 305735, 409815, 428029, 550323, 917205, 1284087, 2140145, 2751615, 3852261, 6420435, 19261305]

約数ペア:

[(1, 19261305), (3, 6420435), (5, 3852261), (7, 2751615), (9, 2140145), (15, 1284087), (21, 917205), (35, 550323), (45, 428029), (47, 409815), (63, 305735), (105, 183441), (141, 136605), (235, 81963), (315, 61147), (329, 58545), (423, 45535), (705, 27321), (987, 19515), (1301, 14805), (1645, 11709), (2115, 9107), (2961, 6505), (3903, 4935)]