21680932

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 48620544

約数和(自身を除く): 26939612

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 67, 91, 98, 127, 134, 182, 196, 254, 268, 364, 469, 508, 637, 871, 889, 938, 1274, 1651, 1742, 1778, 1876, 2548, 3283, 3302, 3484, 3556, 6097, 6223, 6566, 6604, 8509, 11557, 12194, 12446, 13132, 17018, 23114, 24388, 24892, 34036, 42679, 46228, 59563, 80899, 85358, 110617, 119126, 161798, 170716, 221234, 238252, 323596, 416941, 442468, 774319, 833882, 1548638, 1667764, 3097276, 5420233, 10840466, 21680932]

約数ペア:

[(1, 21680932), (2, 10840466), (4, 5420233), (7, 3097276), (13, 1667764), (14, 1548638), (26, 833882), (28, 774319), (49, 442468), (52, 416941), (67, 323596), (91, 238252), (98, 221234), (127, 170716), (134, 161798), (182, 119126), (196, 110617), (254, 85358), (268, 80899), (364, 59563), (469, 46228), (508, 42679), (637, 34036), (871, 24892), (889, 24388), (938, 23114), (1274, 17018), (1651, 13132), (1742, 12446), (1778, 12194), (1876, 11557), (2548, 8509), (3283, 6604), (3302, 6566), (3484, 6223), (3556, 6097)]