211748817

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 350208000

約数和(自身を除く): 138459183

約数列:

[1, 3, 7, 21, 31, 37, 59, 93, 111, 149, 177, 217, 259, 413, 447, 651, 777, 1043, 1147, 1239, 1829, 2183, 3129, 3441, 4619, 5487, 5513, 6549, 8029, 8791, 12803, 13857, 15281, 16539, 24087, 26373, 32333, 38409, 38591, 45843, 61537, 67673, 96999, 115773, 170903, 184611, 203019, 272521, 325267, 473711, 512709, 817563, 975801, 1196321, 1421133, 1907647, 2276869, 3588963, 5722941, 6830607, 10083277, 30249831, 70582939, 211748817]

約数ペア:

[(1, 211748817), (3, 70582939), (7, 30249831), (21, 10083277), (31, 6830607), (37, 5722941), (59, 3588963), (93, 2276869), (111, 1907647), (149, 1421133), (177, 1196321), (217, 975801), (259, 817563), (413, 512709), (447, 473711), (651, 325267), (777, 272521), (1043, 203019), (1147, 184611), (1239, 170903), (1829, 115773), (2183, 96999), (3129, 67673), (3441, 61537), (4619, 45843), (5487, 38591), (5513, 38409), (6549, 32333), (8029, 26373), (8791, 24087), (12803, 16539), (13857, 15281)]