19279215

素因数分解:

$3^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:461

約数の個数: 40

約数和(自身を含む): 34882848

約数和(自身を除く): 15603633

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 181, 263, 405, 543, 789, 905, 1315, 1629, 2367, 2715, 3945, 4887, 7101, 8145, 11835, 14661, 21303, 24435, 35505, 47603, 73305, 106515, 142809, 238015, 428427, 714045, 1285281, 2142135, 3855843, 6426405, 19279215]

約数ペア:

[(1, 19279215), (3, 6426405), (5, 3855843), (9, 2142135), (15, 1285281), (27, 714045), (45, 428427), (81, 238015), (135, 142809), (181, 106515), (263, 73305), (405, 47603), (543, 35505), (789, 24435), (905, 21303), (1315, 14661), (1629, 11835), (2367, 8145), (2715, 7101), (3945, 4887)]