211370621

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{71}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 285825024

約数和(自身を除く): 74454403

約数列:

[1, 7, 11, 23, 41, 71, 77, 161, 253, 287, 451, 497, 781, 943, 1633, 1681, 1771, 2911, 3157, 5467, 6601, 10373, 11431, 11767, 17963, 18491, 20377, 32021, 38663, 66953, 72611, 119351, 125741, 129437, 224147, 270641, 425293, 468671, 736483, 835457, 1312861, 2745073, 2977051, 5155381, 9190027, 19215511, 30195803, 211370621]

約数ペア:

[(1, 211370621), (7, 30195803), (11, 19215511), (23, 9190027), (41, 5155381), (71, 2977051), (77, 2745073), (161, 1312861), (253, 835457), (287, 736483), (451, 468671), (497, 425293), (781, 270641), (943, 224147), (1633, 129437), (1681, 125741), (1771, 119351), (2911, 72611), (3157, 66953), (5467, 38663), (6601, 32021), (10373, 20377), (11431, 18491), (11767, 17963)]