21279278

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 14282962

約数列:

[1, 2, 19, 23, 38, 46, 97, 194, 251, 437, 502, 874, 1843, 2231, 3686, 4462, 4769, 5773, 9538, 11546, 24347, 42389, 48694, 84778, 109687, 219374, 462593, 559981, 925186, 1119962, 10639639, 21279278]

約数ペア:

[(1, 21279278), (2, 10639639), (19, 1119962), (23, 925186), (38, 559981), (46, 462593), (97, 219374), (194, 109687), (251, 84778), (437, 48694), (502, 42389), (874, 24347), (1843, 11546), (2231, 9538), (3686, 5773), (4462, 4769)]