217445228

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{4937}}^1$

素因数の和:4983

約数の個数: 72

約数和(自身を含む): 514895136

約数和(自身を除く): 297449908

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 121, 143, 154, 182, 242, 286, 308, 364, 484, 572, 847, 1001, 1573, 1694, 2002, 3146, 3388, 4004, 4937, 6292, 9874, 11011, 19748, 22022, 34559, 44044, 54307, 64181, 69118, 108614, 128362, 138236, 217228, 256724, 380149, 449267, 597377, 705991, 760298, 898534, 1194754, 1411982, 1520596, 1797068, 2389508, 2823964, 4181639, 4941937, 7765901, 8363278, 9883874, 15531802, 16726556, 19767748, 31063604, 54361307, 108722614, 217445228]

約数ペア:

[(1, 217445228), (2, 108722614), (4, 54361307), (7, 31063604), (11, 19767748), (13, 16726556), (14, 15531802), (22, 9883874), (26, 8363278), (28, 7765901), (44, 4941937), (52, 4181639), (77, 2823964), (91, 2389508), (121, 1797068), (143, 1520596), (154, 1411982), (182, 1194754), (242, 898534), (286, 760298), (308, 705991), (364, 597377), (484, 449267), (572, 380149), (847, 256724), (1001, 217228), (1573, 138236), (1694, 128362), (2002, 108614), (3146, 69118), (3388, 64181), (4004, 54307), (4937, 44044), (6292, 34559), (9874, 22022), (11011, 19748)]