21575346

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 50295168

約数和(自身を除く): 28719822

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 53, 78, 102, 106, 159, 221, 307, 318, 442, 614, 663, 689, 901, 921, 1326, 1378, 1802, 1842, 2067, 2703, 3991, 4134, 5219, 5406, 7982, 10438, 11713, 11973, 15657, 16271, 23426, 23946, 31314, 32542, 35139, 48813, 67847, 70278, 97626, 135694, 203541, 211523, 276607, 407082, 423046, 553214, 634569, 829821, 1269138, 1659642, 3595891, 7191782, 10787673, 21575346]

約数ペア:

[(1, 21575346), (2, 10787673), (3, 7191782), (6, 3595891), (13, 1659642), (17, 1269138), (26, 829821), (34, 634569), (39, 553214), (51, 423046), (53, 407082), (78, 276607), (102, 211523), (106, 203541), (159, 135694), (221, 97626), (307, 70278), (318, 67847), (442, 48813), (614, 35139), (663, 32542), (689, 31314), (901, 23946), (921, 23426), (1326, 16271), (1378, 15657), (1802, 11973), (1842, 11713), (2067, 10438), (2703, 7982), (3991, 5406), (4134, 5219)]