21000209052

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{244109}}^1$

素因数の和:244290

約数の個数: 48

約数和(自身を含む): 50196827520

約数和(自身を除く): 29196618468

約数列:

[1, 2, 3, 4, 6, 12, 67, 107, 134, 201, 214, 268, 321, 402, 428, 642, 804, 1284, 7169, 14338, 21507, 28676, 43014, 86028, 244109, 488218, 732327, 976436, 1464654, 2929308, 16355303, 26119663, 32710606, 49065909, 52239326, 65421212, 78358989, 98131818, 104478652, 156717978, 196263636, 313435956, 1750017421, 3500034842, 5250052263, 7000069684, 10500104526, 21000209052]

約数ペア:

[(1, 21000209052), (2, 10500104526), (3, 7000069684), (4, 5250052263), (6, 3500034842), (12, 1750017421), (67, 313435956), (107, 196263636), (134, 156717978), (201, 104478652), (214, 98131818), (268, 78358989), (321, 65421212), (402, 52239326), (428, 49065909), (642, 32710606), (804, 26119663), (1284, 16355303), (7169, 2929308), (14338, 1464654), (21507, 976436), (28676, 732327), (43014, 488218), (86028, 244109)]