19854164

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 42900480

約数和(自身を除く): 23046316

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 121, 127, 187, 209, 242, 254, 323, 374, 418, 484, 508, 646, 748, 836, 1292, 1397, 2057, 2159, 2299, 2413, 2794, 3553, 4114, 4318, 4598, 4826, 5588, 7106, 8228, 8636, 9196, 9652, 14212, 15367, 23749, 26543, 30734, 39083, 41021, 47498, 53086, 61468, 78166, 82042, 94996, 106172, 156332, 164084, 261239, 291973, 451231, 522478, 583946, 902462, 1044956, 1167892, 1804924, 4963541, 9927082, 19854164]

約数ペア:

[(1, 19854164), (2, 9927082), (4, 4963541), (11, 1804924), (17, 1167892), (19, 1044956), (22, 902462), (34, 583946), (38, 522478), (44, 451231), (68, 291973), (76, 261239), (121, 164084), (127, 156332), (187, 106172), (209, 94996), (242, 82042), (254, 78166), (323, 61468), (374, 53086), (418, 47498), (484, 41021), (508, 39083), (646, 30734), (748, 26543), (836, 23749), (1292, 15367), (1397, 14212), (2057, 9652), (2159, 9196), (2299, 8636), (2413, 8228), (2794, 7106), (3553, 5588), (4114, 4826), (4318, 4598)]