21152388

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40993}}^1$

素因数の和:41043

約数の個数: 24

約数和(自身を含む): 50504608

約数和(自身を除く): 29352220

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40993, 81986, 122979, 163972, 245958, 491916, 1762699, 3525398, 5288097, 7050796, 10576194, 21152388]

約数ペア:

[(1, 21152388), (2, 10576194), (3, 7050796), (4, 5288097), (6, 3525398), (12, 1762699), (43, 491916), (86, 245958), (129, 163972), (172, 122979), (258, 81986), (516, 40993)]