21640962

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{577}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 53268480

約数和(自身を除く): 31627518

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 47, 57, 94, 114, 133, 141, 266, 282, 329, 399, 577, 658, 798, 893, 987, 1154, 1731, 1786, 1974, 2679, 3462, 4039, 5358, 6251, 8078, 10963, 12117, 12502, 18753, 21926, 24234, 27119, 32889, 37506, 54238, 65778, 76741, 81357, 153482, 162714, 189833, 230223, 379666, 460446, 515261, 569499, 1030522, 1138998, 1545783, 3091566, 3606827, 7213654, 10820481, 21640962]

約数ペア:

[(1, 21640962), (2, 10820481), (3, 7213654), (6, 3606827), (7, 3091566), (14, 1545783), (19, 1138998), (21, 1030522), (38, 569499), (42, 515261), (47, 460446), (57, 379666), (94, 230223), (114, 189833), (133, 162714), (141, 153482), (266, 81357), (282, 76741), (329, 65778), (399, 54238), (577, 37506), (658, 32889), (798, 27119), (893, 24234), (987, 21926), (1154, 18753), (1731, 12502), (1786, 12117), (1974, 10963), (2679, 8078), (3462, 6251), (4039, 5358)]