203175021

素因数分解:

$3^1\times 7^4\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:519

約数の個数: 40

約数和(自身を含む): 321509984

約数和(自身を除く): 118334963

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 343, 421, 469, 1029, 1263, 1407, 2401, 2947, 3283, 7203, 8841, 9849, 20629, 22981, 28207, 61887, 68943, 84621, 144403, 160867, 197449, 433209, 482601, 592347, 1010821, 1382143, 3032463, 4146429, 9675001, 29025003, 67725007, 203175021]

約数ペア:

[(1, 203175021), (3, 67725007), (7, 29025003), (21, 9675001), (49, 4146429), (67, 3032463), (147, 1382143), (201, 1010821), (343, 592347), (421, 482601), (469, 433209), (1029, 197449), (1263, 160867), (1407, 144403), (2401, 84621), (2947, 68943), (3283, 61887), (7203, 28207), (8841, 22981), (9849, 20629)]