19938116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 36

約数和(自身を含む): 39238416

約数和(自身を除く): 19300300

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 331, 407, 662, 814, 1324, 1369, 1628, 2738, 3641, 5476, 7282, 12247, 14564, 15059, 24494, 30118, 48988, 60236, 134717, 269434, 453139, 538868, 906278, 1812556, 4984529, 9969058, 19938116]

約数ペア:

[(1, 19938116), (2, 9969058), (4, 4984529), (11, 1812556), (22, 906278), (37, 538868), (44, 453139), (74, 269434), (148, 134717), (331, 60236), (407, 48988), (662, 30118), (814, 24494), (1324, 15059), (1369, 14564), (1628, 12247), (2738, 7282), (3641, 5476)]