207731727

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 371685600

約数和(自身を除く): 163953873

約数列:

[1, 3, 7, 9, 21, 29, 37, 49, 63, 87, 111, 147, 203, 259, 261, 333, 439, 441, 609, 777, 1073, 1317, 1421, 1813, 1827, 2331, 3073, 3219, 3951, 4263, 5439, 7511, 9219, 9657, 12731, 12789, 16243, 16317, 21511, 22533, 27657, 38193, 48729, 52577, 64533, 67599, 89117, 113701, 114579, 146187, 157731, 193599, 267351, 341103, 471047, 473193, 623819, 795907, 802053, 1023309, 1413141, 1871457, 2387721, 3297329, 4239423, 5614371, 7163163, 9891987, 23081303, 29675961, 69243909, 207731727]

約数ペア:

[(1, 207731727), (3, 69243909), (7, 29675961), (9, 23081303), (21, 9891987), (29, 7163163), (37, 5614371), (49, 4239423), (63, 3297329), (87, 2387721), (111, 1871457), (147, 1413141), (203, 1023309), (259, 802053), (261, 795907), (333, 623819), (439, 473193), (441, 471047), (609, 341103), (777, 267351), (1073, 193599), (1317, 157731), (1421, 146187), (1813, 114579), (1827, 113701), (2331, 89117), (3073, 67599), (3219, 64533), (3951, 52577), (4263, 48729), (5439, 38193), (7511, 27657), (9219, 22533), (9657, 21511), (12731, 16317), (12789, 16243)]