21403884

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 53222400

約数和(自身を除く): 31818516

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 239, 439, 478, 717, 878, 956, 1317, 1434, 1756, 2634, 2868, 4063, 5268, 7463, 8126, 12189, 14926, 16252, 22389, 24378, 29852, 44778, 48756, 89556, 104921, 209842, 314763, 419684, 629526, 1259052, 1783657, 3567314, 5350971, 7134628, 10701942, 21403884]

約数ペア:

[(1, 21403884), (2, 10701942), (3, 7134628), (4, 5350971), (6, 3567314), (12, 1783657), (17, 1259052), (34, 629526), (51, 419684), (68, 314763), (102, 209842), (204, 104921), (239, 89556), (439, 48756), (478, 44778), (717, 29852), (878, 24378), (956, 22389), (1317, 16252), (1434, 14926), (1756, 12189), (2634, 8126), (2868, 7463), (4063, 5268)]