21189456

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 120

約数和(自身を含む): 63032424

約数和(自身を除く): 41842968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 41, 48, 72, 74, 82, 97, 111, 123, 144, 148, 164, 194, 222, 246, 291, 296, 328, 333, 369, 388, 444, 492, 582, 592, 656, 666, 738, 776, 873, 888, 984, 1164, 1332, 1476, 1517, 1552, 1746, 1776, 1968, 2328, 2664, 2952, 3034, 3492, 3589, 3977, 4551, 4656, 5328, 5904, 6068, 6984, 7178, 7954, 9102, 10767, 11931, 12136, 13653, 13968, 14356, 15908, 18204, 21534, 23862, 24272, 27306, 28712, 31816, 32301, 35793, 36408, 43068, 47724, 54612, 57424, 63632, 64602, 71586, 72816, 86136, 95448, 109224, 129204, 143172, 147149, 172272, 190896, 218448, 258408, 286344, 294298, 441447, 516816, 572688, 588596, 882894, 1177192, 1324341, 1765788, 2354384, 2648682, 3531576, 5297364, 7063152, 10594728, 21189456]

約数ペア:

[(1, 21189456), (2, 10594728), (3, 7063152), (4, 5297364), (6, 3531576), (8, 2648682), (9, 2354384), (12, 1765788), (16, 1324341), (18, 1177192), (24, 882894), (36, 588596), (37, 572688), (41, 516816), (48, 441447), (72, 294298), (74, 286344), (82, 258408), (97, 218448), (111, 190896), (123, 172272), (144, 147149), (148, 143172), (164, 129204), (194, 109224), (222, 95448), (246, 86136), (291, 72816), (296, 71586), (328, 64602), (333, 63632), (369, 57424), (388, 54612), (444, 47724), (492, 43068), (582, 36408), (592, 35793), (656, 32301), (666, 31816), (738, 28712), (776, 27306), (873, 24272), (888, 23862), (984, 21534), (1164, 18204), (1332, 15908), (1476, 14356), (1517, 13968), (1552, 13653), (1746, 12136), (1776, 11931), (1968, 10767), (2328, 9102), (2664, 7954), (2952, 7178), (3034, 6984), (3492, 6068), (3589, 5904), (3977, 5328), (4551, 4656)]