21099285

素因数分解:

$3^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{883}}^1$

素因数の和:959

約数の個数: 40

約数和(自身を含む): 38507040

約数和(自身を除く): 17407755

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 81, 135, 177, 295, 405, 531, 883, 885, 1593, 2649, 2655, 4415, 4779, 7947, 7965, 13245, 23841, 23895, 39735, 52097, 71523, 119205, 156291, 260485, 357615, 468873, 781455, 1406619, 2344365, 4219857, 7033095, 21099285]

約数ペア:

[(1, 21099285), (3, 7033095), (5, 4219857), (9, 2344365), (15, 1406619), (27, 781455), (45, 468873), (59, 357615), (81, 260485), (135, 156291), (177, 119205), (295, 71523), (405, 52097), (531, 39735), (883, 23895), (885, 23841), (1593, 13245), (2649, 7965), (2655, 7947), (4415, 4779)]