21013202

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 38206080

約数和(自身を除く): 17192878

約数列:

[1, 2, 7, 14, 19, 38, 133, 197, 266, 394, 401, 802, 1379, 2758, 2807, 3743, 5614, 7486, 7619, 15238, 26201, 52402, 53333, 78997, 106666, 157994, 552979, 1105958, 1500943, 3001886, 10506601, 21013202]

約数ペア:

[(1, 21013202), (2, 10506601), (7, 3001886), (14, 1500943), (19, 1105958), (38, 552979), (133, 157994), (197, 106666), (266, 78997), (394, 53333), (401, 52402), (802, 26201), (1379, 15238), (2758, 7619), (2807, 7486), (3743, 5614)]