21166912

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:160

約数の個数: 84

約数和(自身を含む): 48341280

約数和(自身を除く): 27174368

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 103, 104, 152, 169, 206, 208, 247, 304, 338, 412, 416, 494, 608, 676, 824, 832, 988, 1216, 1339, 1352, 1648, 1957, 1976, 2678, 2704, 3211, 3296, 3914, 3952, 5356, 5408, 6422, 6592, 7828, 7904, 10712, 10816, 12844, 15656, 15808, 17407, 21424, 25441, 25688, 31312, 34814, 42848, 50882, 51376, 62624, 69628, 85696, 101764, 102752, 125248, 139256, 203528, 205504, 278512, 330733, 407056, 557024, 661466, 814112, 1114048, 1322932, 1628224, 2645864, 5291728, 10583456, 21166912]

約数ペア:

[(1, 21166912), (2, 10583456), (4, 5291728), (8, 2645864), (13, 1628224), (16, 1322932), (19, 1114048), (26, 814112), (32, 661466), (38, 557024), (52, 407056), (64, 330733), (76, 278512), (103, 205504), (104, 203528), (152, 139256), (169, 125248), (206, 102752), (208, 101764), (247, 85696), (304, 69628), (338, 62624), (412, 51376), (416, 50882), (494, 42848), (608, 34814), (676, 31312), (824, 25688), (832, 25441), (988, 21424), (1216, 17407), (1339, 15808), (1352, 15656), (1648, 12844), (1957, 10816), (1976, 10712), (2678, 7904), (2704, 7828), (3211, 6592), (3296, 6422), (3914, 5408), (3952, 5356)]