18537428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 40341504

約数和(自身を除く): 21804076

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 127, 182, 254, 364, 401, 508, 802, 889, 1604, 1651, 1778, 2807, 3302, 3556, 5213, 5614, 6604, 10426, 11228, 11557, 20852, 23114, 36491, 46228, 50927, 72982, 101854, 145964, 203708, 356489, 662051, 712978, 1324102, 1425956, 2648204, 4634357, 9268714, 18537428]

約数ペア:

[(1, 18537428), (2, 9268714), (4, 4634357), (7, 2648204), (13, 1425956), (14, 1324102), (26, 712978), (28, 662051), (52, 356489), (91, 203708), (127, 145964), (182, 101854), (254, 72982), (364, 50927), (401, 46228), (508, 36491), (802, 23114), (889, 20852), (1604, 11557), (1651, 11228), (1778, 10426), (2807, 6604), (3302, 5614), (3556, 5213)]