215186307

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1\times {\mathrm{487}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 335619072

約数和(自身を除く): 120432765

約数列:

[1, 3, 7, 21, 53, 159, 371, 397, 487, 1113, 1191, 1461, 2779, 3409, 8337, 10227, 21041, 25811, 63123, 77433, 147287, 180677, 193339, 441861, 542031, 580017, 1353373, 4060119, 10246967, 30740901, 71728769, 215186307]

約数ペア:

[(1, 215186307), (3, 71728769), (7, 30740901), (21, 10246967), (53, 4060119), (159, 1353373), (371, 580017), (397, 542031), (487, 441861), (1113, 193339), (1191, 180677), (1461, 147287), (2779, 77433), (3409, 63123), (8337, 25811), (10227, 21041)]