21281484

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2129}}^1$

素因数の和:2167

約数の個数: 72

約数和(自身を含む): 61190640

約数和(自身を除く): 39909156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 68, 84, 98, 102, 119, 147, 196, 204, 238, 294, 357, 476, 588, 714, 833, 1428, 1666, 2129, 2499, 3332, 4258, 4998, 6387, 8516, 9996, 12774, 14903, 25548, 29806, 36193, 44709, 59612, 72386, 89418, 104321, 108579, 144772, 178836, 208642, 217158, 253351, 312963, 417284, 434316, 506702, 625926, 760053, 1013404, 1251852, 1520106, 1773457, 3040212, 3546914, 5320371, 7093828, 10640742, 21281484]

約数ペア:

[(1, 21281484), (2, 10640742), (3, 7093828), (4, 5320371), (6, 3546914), (7, 3040212), (12, 1773457), (14, 1520106), (17, 1251852), (21, 1013404), (28, 760053), (34, 625926), (42, 506702), (49, 434316), (51, 417284), (68, 312963), (84, 253351), (98, 217158), (102, 208642), (119, 178836), (147, 144772), (196, 108579), (204, 104321), (238, 89418), (294, 72386), (357, 59612), (476, 44709), (588, 36193), (714, 29806), (833, 25548), (1428, 14903), (1666, 12774), (2129, 9996), (2499, 8516), (3332, 6387), (4258, 4998)]