20109453

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 35622720

約数和(自身を除く): 15513267

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 221, 273, 357, 619, 637, 663, 833, 1547, 1857, 1911, 2499, 4333, 4641, 8047, 10523, 10829, 12999, 24141, 30331, 31569, 32487, 56329, 73661, 90993, 136799, 168987, 220983, 394303, 410397, 515627, 957593, 1182909, 1546881, 2872779, 6703151, 20109453]

約数ペア:

[(1, 20109453), (3, 6703151), (7, 2872779), (13, 1546881), (17, 1182909), (21, 957593), (39, 515627), (49, 410397), (51, 394303), (91, 220983), (119, 168987), (147, 136799), (221, 90993), (273, 73661), (357, 56329), (619, 32487), (637, 31569), (663, 30331), (833, 24141), (1547, 12999), (1857, 10829), (1911, 10523), (2499, 8047), (4333, 4641)]