21077994

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 52068096

約数和(自身を除く): 30990102

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 53, 102, 106, 119, 159, 238, 318, 357, 371, 557, 714, 742, 901, 1113, 1114, 1671, 1802, 2226, 2703, 3342, 3899, 5406, 6307, 7798, 9469, 11697, 12614, 18921, 18938, 23394, 28407, 29521, 37842, 56814, 59042, 66283, 88563, 132566, 177126, 198849, 206647, 397698, 413294, 501857, 619941, 1003714, 1239882, 1505571, 3011142, 3512999, 7025998, 10538997, 21077994]

約数ペア:

[(1, 21077994), (2, 10538997), (3, 7025998), (6, 3512999), (7, 3011142), (14, 1505571), (17, 1239882), (21, 1003714), (34, 619941), (42, 501857), (51, 413294), (53, 397698), (102, 206647), (106, 198849), (119, 177126), (159, 132566), (238, 88563), (318, 66283), (357, 59042), (371, 56814), (557, 37842), (714, 29521), (742, 28407), (901, 23394), (1113, 18938), (1114, 18921), (1671, 12614), (1802, 11697), (2226, 9469), (2703, 7798), (3342, 6307), (3899, 5406)]