21839708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 43330560

約数和(自身を除く): 21490852

約数列:

[1, 2, 4, 11, 22, 44, 61, 79, 103, 122, 158, 206, 244, 316, 412, 671, 869, 1133, 1342, 1738, 2266, 2684, 3476, 4532, 4819, 6283, 8137, 9638, 12566, 16274, 19276, 25132, 32548, 53009, 69113, 89507, 106018, 138226, 179014, 212036, 276452, 358028, 496357, 992714, 1985428, 5459927, 10919854, 21839708]

約数ペア:

[(1, 21839708), (2, 10919854), (4, 5459927), (11, 1985428), (22, 992714), (44, 496357), (61, 358028), (79, 276452), (103, 212036), (122, 179014), (158, 138226), (206, 106018), (244, 89507), (316, 69113), (412, 53009), (671, 32548), (869, 25132), (1133, 19276), (1342, 16274), (1738, 12566), (2266, 9638), (2684, 8137), (3476, 6283), (4532, 4819)]