207921315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 394859520

約数和(自身を除く): 186938205

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 109, 111, 185, 259, 327, 491, 545, 555, 763, 777, 1295, 1473, 1635, 2289, 2455, 3437, 3815, 3885, 4033, 7365, 10311, 11445, 12099, 17185, 18167, 20165, 28231, 51555, 53519, 54501, 60495, 84693, 90835, 127169, 141155, 160557, 267595, 272505, 374633, 381507, 423465, 635845, 802785, 1123899, 1873165, 1907535, 1980203, 5619495, 5940609, 9901015, 13861421, 29703045, 41584263, 69307105, 207921315]

約数ペア:

[(1, 207921315), (3, 69307105), (5, 41584263), (7, 29703045), (15, 13861421), (21, 9901015), (35, 5940609), (37, 5619495), (105, 1980203), (109, 1907535), (111, 1873165), (185, 1123899), (259, 802785), (327, 635845), (491, 423465), (545, 381507), (555, 374633), (763, 272505), (777, 267595), (1295, 160557), (1473, 141155), (1635, 127169), (2289, 90835), (2455, 84693), (3437, 60495), (3815, 54501), (3885, 53519), (4033, 51555), (7365, 28231), (10311, 20165), (11445, 18167), (12099, 17185)]