21000824572

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{219371}}^1$

素因数の和:219658

約数の個数: 48

約数和(自身を含む): 45404739072

約数和(自身を除く): 24403914500

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 263, 364, 526, 1052, 1841, 3419, 3682, 6838, 7364, 13676, 23933, 47866, 95732, 219371, 438742, 877484, 1535597, 2851823, 3071194, 5703646, 6142388, 11407292, 19962761, 39925522, 57694573, 79851044, 115389146, 230778292, 403862011, 750029449, 807724022, 1500058898, 1615448044, 3000117796, 5250206143, 10500412286, 21000824572]

約数ペア:

[(1, 21000824572), (2, 10500412286), (4, 5250206143), (7, 3000117796), (13, 1615448044), (14, 1500058898), (26, 807724022), (28, 750029449), (52, 403862011), (91, 230778292), (182, 115389146), (263, 79851044), (364, 57694573), (526, 39925522), (1052, 19962761), (1841, 11407292), (3419, 6142388), (3682, 5703646), (6838, 3071194), (7364, 2851823), (13676, 1535597), (23933, 877484), (47866, 438742), (95732, 219371)]