21885290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 48708864

約数和(自身を除く): 26823574

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 53, 70, 85, 106, 119, 170, 238, 265, 347, 371, 530, 595, 694, 742, 901, 1190, 1735, 1802, 1855, 2429, 3470, 3710, 4505, 4858, 5899, 6307, 9010, 11798, 12145, 12614, 18391, 24290, 29495, 31535, 36782, 41293, 58990, 63070, 82586, 91955, 128737, 183910, 206465, 257474, 312647, 412930, 625294, 643685, 1287370, 1563235, 2188529, 3126470, 4377058, 10942645, 21885290]

約数ペア:

[(1, 21885290), (2, 10942645), (5, 4377058), (7, 3126470), (10, 2188529), (14, 1563235), (17, 1287370), (34, 643685), (35, 625294), (53, 412930), (70, 312647), (85, 257474), (106, 206465), (119, 183910), (170, 128737), (238, 91955), (265, 82586), (347, 63070), (371, 58990), (530, 41293), (595, 36782), (694, 31535), (742, 29495), (901, 24290), (1190, 18391), (1735, 12614), (1802, 12145), (1855, 11798), (2429, 9010), (3470, 6307), (3710, 5899), (4505, 4858)]