21164178

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71987}}^1$

素因数の和:72006

約数の個数: 24

約数和(自身を含む): 49239792

約数和(自身を除く): 28075614

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 71987, 143974, 215961, 431922, 503909, 1007818, 1511727, 3023454, 3527363, 7054726, 10582089, 21164178]

約数ペア:

[(1, 21164178), (2, 10582089), (3, 7054726), (6, 3527363), (7, 3023454), (14, 1511727), (21, 1007818), (42, 503909), (49, 431922), (98, 215961), (147, 143974), (294, 71987)]