18971085

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 36049536

約数和(自身を除く): 17078451

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 53, 105, 147, 159, 245, 265, 371, 487, 735, 795, 1113, 1461, 1855, 2435, 2597, 3409, 5565, 7305, 7791, 10227, 12985, 17045, 23863, 25811, 38955, 51135, 71589, 77433, 119315, 129055, 180677, 357945, 387165, 542031, 903385, 1264739, 2710155, 3794217, 6323695, 18971085]

約数ペア:

[(1, 18971085), (3, 6323695), (5, 3794217), (7, 2710155), (15, 1264739), (21, 903385), (35, 542031), (49, 387165), (53, 357945), (105, 180677), (147, 129055), (159, 119315), (245, 77433), (265, 71589), (371, 51135), (487, 38955), (735, 25811), (795, 23863), (1113, 17045), (1461, 12985), (1855, 10227), (2435, 7791), (2597, 7305), (3409, 5565)]