19749712

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:575

約数の個数: 40

約数和(自身を含む): 39924776

約数和(自身を除く): 20175064

約数列:

[1, 2, 4, 8, 16, 37, 73, 74, 146, 148, 292, 296, 457, 584, 592, 914, 1168, 1828, 2701, 3656, 5402, 7312, 10804, 16909, 21608, 33361, 33818, 43216, 66722, 67636, 133444, 135272, 266888, 270544, 533776, 1234357, 2468714, 4937428, 9874856, 19749712]

約数ペア:

[(1, 19749712), (2, 9874856), (4, 4937428), (8, 2468714), (16, 1234357), (37, 533776), (73, 270544), (74, 266888), (146, 135272), (148, 133444), (292, 67636), (296, 66722), (457, 43216), (584, 33818), (592, 33361), (914, 21608), (1168, 16909), (1828, 10804), (2701, 7312), (3656, 5402)]