21449936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1907}}^1$

素因数の和:1971

約数の個数: 40

約数和(自身を含む): 44952480

約数和(自身を除く): 23502544

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 1907, 2812, 3814, 5624, 7628, 11248, 15256, 30512, 36233, 70559, 72466, 141118, 144932, 282236, 289864, 564472, 579728, 1128944, 1340621, 2681242, 5362484, 10724968, 21449936]

約数ペア:

[(1, 21449936), (2, 10724968), (4, 5362484), (8, 2681242), (16, 1340621), (19, 1128944), (37, 579728), (38, 564472), (74, 289864), (76, 282236), (148, 144932), (152, 141118), (296, 72466), (304, 70559), (592, 36233), (703, 30512), (1406, 15256), (1907, 11248), (2812, 7628), (3814, 5624)]