21261492

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{709}}^1$

素因数の和:750

約数の個数: 108

約数和(自身を含む): 66289860

約数和(自身を除く): 45028368

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 49, 51, 63, 68, 84, 98, 102, 119, 126, 147, 153, 196, 204, 238, 252, 294, 306, 357, 441, 476, 588, 612, 709, 714, 833, 882, 1071, 1418, 1428, 1666, 1764, 2127, 2142, 2499, 2836, 3332, 4254, 4284, 4963, 4998, 6381, 7497, 8508, 9926, 9996, 12053, 12762, 14889, 14994, 19852, 24106, 25524, 29778, 29988, 34741, 36159, 44667, 48212, 59556, 69482, 72318, 84371, 89334, 104223, 108477, 138964, 144636, 168742, 178668, 208446, 216954, 253113, 312669, 337484, 416892, 433908, 506226, 590597, 625338, 759339, 1012452, 1181194, 1250676, 1518678, 1771791, 2362388, 3037356, 3543582, 5315373, 7087164, 10630746, 21261492]

約数ペア:

[(1, 21261492), (2, 10630746), (3, 7087164), (4, 5315373), (6, 3543582), (7, 3037356), (9, 2362388), (12, 1771791), (14, 1518678), (17, 1250676), (18, 1181194), (21, 1012452), (28, 759339), (34, 625338), (36, 590597), (42, 506226), (49, 433908), (51, 416892), (63, 337484), (68, 312669), (84, 253113), (98, 216954), (102, 208446), (119, 178668), (126, 168742), (147, 144636), (153, 138964), (196, 108477), (204, 104223), (238, 89334), (252, 84371), (294, 72318), (306, 69482), (357, 59556), (441, 48212), (476, 44667), (588, 36159), (612, 34741), (709, 29988), (714, 29778), (833, 25524), (882, 24106), (1071, 19852), (1418, 14994), (1428, 14889), (1666, 12762), (1764, 12053), (2127, 9996), (2142, 9926), (2499, 8508), (2836, 7497), (3332, 6381), (4254, 4998), (4284, 4963)]