211971636

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:861

約数の個数: 72

約数和(自身を含む): 548481024

約数和(自身を除く): 336509388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 127, 142, 213, 254, 284, 381, 426, 508, 639, 653, 762, 852, 1143, 1278, 1306, 1524, 1959, 2286, 2556, 2612, 3918, 4572, 5877, 7836, 9017, 11754, 18034, 23508, 27051, 36068, 46363, 54102, 81153, 82931, 92726, 108204, 139089, 162306, 165862, 185452, 248793, 278178, 324612, 331724, 417267, 497586, 556356, 746379, 834534, 995172, 1492758, 1669068, 2985516, 5888101, 11776202, 17664303, 23552404, 35328606, 52992909, 70657212, 105985818, 211971636]

約数ペア:

[(1, 211971636), (2, 105985818), (3, 70657212), (4, 52992909), (6, 35328606), (9, 23552404), (12, 17664303), (18, 11776202), (36, 5888101), (71, 2985516), (127, 1669068), (142, 1492758), (213, 995172), (254, 834534), (284, 746379), (381, 556356), (426, 497586), (508, 417267), (639, 331724), (653, 324612), (762, 278178), (852, 248793), (1143, 185452), (1278, 165862), (1306, 162306), (1524, 139089), (1959, 108204), (2286, 92726), (2556, 82931), (2612, 81153), (3918, 54102), (4572, 46363), (5877, 36068), (7836, 27051), (9017, 23508), (11754, 18034)]