21328128

素因数分解:

$2^8\times 3^2\times {\mathrm{9257}}^1$

素因数の和:9279

約数の個数: 54

約数和(自身を含む): 61500894

約数和(自身を除く): 40172766

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 576, 768, 1152, 2304, 9257, 18514, 27771, 37028, 55542, 74056, 83313, 111084, 148112, 166626, 222168, 296224, 333252, 444336, 592448, 666504, 888672, 1184896, 1333008, 1777344, 2369792, 2666016, 3554688, 5332032, 7109376, 10664064, 21328128]

約数ペア:

[(1, 21328128), (2, 10664064), (3, 7109376), (4, 5332032), (6, 3554688), (8, 2666016), (9, 2369792), (12, 1777344), (16, 1333008), (18, 1184896), (24, 888672), (32, 666504), (36, 592448), (48, 444336), (64, 333252), (72, 296224), (96, 222168), (128, 166626), (144, 148112), (192, 111084), (256, 83313), (288, 74056), (384, 55542), (576, 37028), (768, 27771), (1152, 18514), (2304, 9257)]