21000882

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 30700878

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 67, 102, 119, 134, 201, 238, 357, 402, 439, 469, 714, 878, 938, 1139, 1317, 1407, 2278, 2634, 2814, 3073, 3417, 6146, 6834, 7463, 7973, 9219, 14926, 15946, 18438, 22389, 23919, 29413, 44778, 47838, 52241, 58826, 88239, 104482, 156723, 176478, 205891, 313446, 411782, 500021, 617673, 1000042, 1235346, 1500063, 3000126, 3500147, 7000294, 10500441, 21000882]

約数ペア:

[(1, 21000882), (2, 10500441), (3, 7000294), (6, 3500147), (7, 3000126), (14, 1500063), (17, 1235346), (21, 1000042), (34, 617673), (42, 500021), (51, 411782), (67, 313446), (102, 205891), (119, 176478), (134, 156723), (201, 104482), (238, 88239), (357, 58826), (402, 52241), (439, 47838), (469, 44778), (714, 29413), (878, 23919), (938, 22389), (1139, 18438), (1317, 15946), (1407, 14926), (2278, 9219), (2634, 7973), (2814, 7463), (3073, 6834), (3417, 6146)]