21762448

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4211}}^1$

素因数の和:4255

約数の個数: 40

約数和(自身を含む): 47005920

約数和(自身を除く): 25243472

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 4211, 5168, 8422, 16844, 33688, 67376, 71587, 80009, 143174, 160018, 286348, 320036, 572696, 640072, 1145392, 1280144, 1360153, 2720306, 5440612, 10881224, 21762448]

約数ペア:

[(1, 21762448), (2, 10881224), (4, 5440612), (8, 2720306), (16, 1360153), (17, 1280144), (19, 1145392), (34, 640072), (38, 572696), (68, 320036), (76, 286348), (136, 160018), (152, 143174), (272, 80009), (304, 71587), (323, 67376), (646, 33688), (1292, 16844), (2584, 8422), (4211, 5168)]