20707272

素因数分解:

$2^3\times 3^3\times {\mathrm{37}}^1\times {\mathrm{2591}}^1$

素因数の和:2643

約数の個数: 64

約数和(自身を含む): 59097600

約数和(自身を除く): 38390328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 72, 74, 108, 111, 148, 216, 222, 296, 333, 444, 666, 888, 999, 1332, 1998, 2591, 2664, 3996, 5182, 7773, 7992, 10364, 15546, 20728, 23319, 31092, 46638, 62184, 69957, 93276, 95867, 139914, 186552, 191734, 279828, 287601, 383468, 559656, 575202, 766936, 862803, 1150404, 1725606, 2300808, 2588409, 3451212, 5176818, 6902424, 10353636, 20707272]

約数ペア:

[(1, 20707272), (2, 10353636), (3, 6902424), (4, 5176818), (6, 3451212), (8, 2588409), (9, 2300808), (12, 1725606), (18, 1150404), (24, 862803), (27, 766936), (36, 575202), (37, 559656), (54, 383468), (72, 287601), (74, 279828), (108, 191734), (111, 186552), (148, 139914), (216, 95867), (222, 93276), (296, 69957), (333, 62184), (444, 46638), (666, 31092), (888, 23319), (999, 20728), (1332, 15546), (1998, 10364), (2591, 7992), (2664, 7773), (3996, 5182)]