21872775

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{4943}}^1$

素因数の和:5015

約数の個数: 24

約数和(自身を含む): 36783360

約数和(自身を除く): 14910585

約数列:

[1, 3, 5, 15, 25, 59, 75, 177, 295, 885, 1475, 4425, 4943, 14829, 24715, 74145, 123575, 291637, 370725, 874911, 1458185, 4374555, 7290925, 21872775]

約数ペア:

[(1, 21872775), (3, 7290925), (5, 4374555), (15, 1458185), (25, 874911), (59, 370725), (75, 291637), (177, 123575), (295, 74145), (885, 24715), (1475, 14829), (4425, 4943)]