21687744

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8689}}^1$

素因数の和:8717

約数の個数: 56

約数和(自身を含む): 61803280

約数和(自身を除く): 40115536

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 192, 208, 312, 416, 624, 832, 1248, 2496, 8689, 17378, 26067, 34756, 52134, 69512, 104268, 112957, 139024, 208536, 225914, 278048, 338871, 417072, 451828, 556096, 677742, 834144, 903656, 1355484, 1668288, 1807312, 2710968, 3614624, 5421936, 7229248, 10843872, 21687744]

約数ペア:

[(1, 21687744), (2, 10843872), (3, 7229248), (4, 5421936), (6, 3614624), (8, 2710968), (12, 1807312), (13, 1668288), (16, 1355484), (24, 903656), (26, 834144), (32, 677742), (39, 556096), (48, 451828), (52, 417072), (64, 338871), (78, 278048), (96, 225914), (104, 208536), (156, 139024), (192, 112957), (208, 104268), (312, 69512), (416, 52134), (624, 34756), (832, 26067), (1248, 17378), (2496, 8689)]