21605964

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{491}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 53450880

約数和(自身を除く): 31844916

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 193, 228, 386, 491, 579, 772, 982, 1158, 1473, 1964, 2316, 2946, 3667, 5892, 7334, 9329, 11001, 14668, 18658, 22002, 27987, 37316, 44004, 55974, 94763, 111948, 189526, 284289, 379052, 568578, 1137156, 1800497, 3600994, 5401491, 7201988, 10802982, 21605964]

約数ペア:

[(1, 21605964), (2, 10802982), (3, 7201988), (4, 5401491), (6, 3600994), (12, 1800497), (19, 1137156), (38, 568578), (57, 379052), (76, 284289), (114, 189526), (193, 111948), (228, 94763), (386, 55974), (491, 44004), (579, 37316), (772, 27987), (982, 22002), (1158, 18658), (1473, 14668), (1964, 11001), (2316, 9329), (2946, 7334), (3667, 5892)]