20811516

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^3\times {\mathrm{1303}}^1$

素因数の和:1343

約数の個数: 48

約数和(自身を含む): 53453568

約数和(自身を除く): 32642052

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 121, 132, 242, 363, 484, 726, 1303, 1331, 1452, 2606, 2662, 3909, 3993, 5212, 5324, 7818, 7986, 14333, 15636, 15972, 28666, 42999, 57332, 85998, 157663, 171996, 315326, 472989, 630652, 945978, 1734293, 1891956, 3468586, 5202879, 6937172, 10405758, 20811516]

約数ペア:

[(1, 20811516), (2, 10405758), (3, 6937172), (4, 5202879), (6, 3468586), (11, 1891956), (12, 1734293), (22, 945978), (33, 630652), (44, 472989), (66, 315326), (121, 171996), (132, 157663), (242, 85998), (363, 57332), (484, 42999), (726, 28666), (1303, 15972), (1331, 15636), (1452, 14333), (2606, 7986), (2662, 7818), (3909, 5324), (3993, 5212)]