821498402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{2003}}^1$

素因数の和:2318

約数の個数: 32

約数和(自身を含む): 1333221120

約数和(自身を除く): 511722718

約数列:

[1, 2, 19, 38, 43, 86, 251, 502, 817, 1634, 2003, 4006, 4769, 9538, 10793, 21586, 38057, 76114, 86129, 172258, 205067, 410134, 502753, 1005506, 1636451, 3272902, 9552307, 19104614, 21618379, 43236758, 410749201, 821498402]

約数ペア:

[(1, 821498402), (2, 410749201), (19, 43236758), (38, 21618379), (43, 19104614), (86, 9552307), (251, 3272902), (502, 1636451), (817, 1005506), (1634, 502753), (2003, 410134), (4006, 205067), (4769, 172258), (9538, 86129), (10793, 76114), (21586, 38057)]