20161986468

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{18959}}^1$

素因数の和:19397

約数の個数: 96

約数和(自身を含む): 53780267520

約数和(自身を除く): 33618281052

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 401, 442, 663, 802, 884, 1203, 1326, 1604, 2406, 2652, 4812, 5213, 6817, 10426, 13634, 15639, 18959, 20451, 20852, 27268, 31278, 37918, 40902, 56877, 62556, 75836, 81804, 88621, 113754, 177242, 227508, 246467, 265863, 322303, 354484, 492934, 531726, 644606, 739401, 966909, 985868, 1063452, 1289212, 1478802, 1933818, 2957604, 3867636, 4189939, 7602559, 8379878, 12569817, 15205118, 16759756, 22807677, 25139634, 30410236, 45615354, 50279268, 91230708, 98833267, 129243503, 197666534, 258487006, 296499801, 387730509, 395333068, 516974012, 592999602, 775461018, 1185999204, 1550922036, 1680165539, 3360331078, 5040496617, 6720662156, 10080993234, 20161986468]

約数ペア:

[(1, 20161986468), (2, 10080993234), (3, 6720662156), (4, 5040496617), (6, 3360331078), (12, 1680165539), (13, 1550922036), (17, 1185999204), (26, 775461018), (34, 592999602), (39, 516974012), (51, 395333068), (52, 387730509), (68, 296499801), (78, 258487006), (102, 197666534), (156, 129243503), (204, 98833267), (221, 91230708), (401, 50279268), (442, 45615354), (663, 30410236), (802, 25139634), (884, 22807677), (1203, 16759756), (1326, 15205118), (1604, 12569817), (2406, 8379878), (2652, 7602559), (4812, 4189939), (5213, 3867636), (6817, 2957604), (10426, 1933818), (13634, 1478802), (15639, 1289212), (18959, 1063452), (20451, 985868), (20852, 966909), (27268, 739401), (31278, 644606), (37918, 531726), (40902, 492934), (56877, 354484), (62556, 322303), (75836, 265863), (81804, 246467), (88621, 227508), (113754, 177242)]