21468664528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{281357}}^1$

素因数の和:281635

約数の個数: 40

約数和(自身を含む): 43959373920

約数和(自身を除く): 22490709392

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 251, 304, 502, 1004, 2008, 4016, 4769, 9538, 19076, 38152, 76304, 281357, 562714, 1125428, 2250856, 4501712, 5345783, 10691566, 21383132, 42766264, 70620607, 85532528, 141241214, 282482428, 564964856, 1129929712, 1341791533, 2683583066, 5367166132, 10734332264, 21468664528]

約数ペア:

[(1, 21468664528), (2, 10734332264), (4, 5367166132), (8, 2683583066), (16, 1341791533), (19, 1129929712), (38, 564964856), (76, 282482428), (152, 141241214), (251, 85532528), (304, 70620607), (502, 42766264), (1004, 21383132), (2008, 10691566), (4016, 5345783), (4769, 4501712), (9538, 2250856), (19076, 1125428), (38152, 562714), (76304, 281357)]