21492295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 29346624

約数和(自身を除く): 7854329

約数列:

[1, 5, 11, 53, 55, 73, 101, 265, 365, 505, 583, 803, 1111, 2915, 3869, 4015, 5353, 5555, 7373, 19345, 26765, 36865, 42559, 58883, 81103, 212795, 294415, 390769, 405515, 1953845, 4298459, 21492295]

約数ペア:

[(1, 21492295), (5, 4298459), (11, 1953845), (53, 405515), (55, 390769), (73, 294415), (101, 212795), (265, 81103), (365, 58883), (505, 42559), (583, 36865), (803, 26765), (1111, 19345), (2915, 7373), (3869, 5555), (4015, 5353)]