26989137

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 46500480

約数和(自身を除く): 19511343

約数列:

[1, 3, 7, 9, 21, 53, 59, 63, 137, 159, 177, 371, 411, 413, 477, 531, 959, 1113, 1233, 1239, 2877, 3127, 3339, 3717, 7261, 8083, 8631, 9381, 21783, 21889, 24249, 28143, 50827, 56581, 65349, 65667, 72747, 152481, 169743, 197001, 428399, 457443, 509229, 1285197, 2998793, 3855591, 8996379, 26989137]

約数ペア:

[(1, 26989137), (3, 8996379), (7, 3855591), (9, 2998793), (21, 1285197), (53, 509229), (59, 457443), (63, 428399), (137, 197001), (159, 169743), (177, 152481), (371, 72747), (411, 65667), (413, 65349), (477, 56581), (531, 50827), (959, 28143), (1113, 24249), (1233, 21889), (1239, 21783), (2877, 9381), (3127, 8631), (3339, 8083), (3717, 7261)]