20963175

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 37378560

約数和(自身を除く): 16415385

約数列:

[1, 3, 5, 15, 19, 25, 47, 57, 75, 95, 141, 235, 285, 313, 475, 705, 893, 939, 1175, 1425, 1565, 2679, 3525, 4465, 4695, 5947, 7825, 13395, 14711, 17841, 22325, 23475, 29735, 44133, 66975, 73555, 89205, 148675, 220665, 279509, 367775, 446025, 838527, 1103325, 1397545, 4192635, 6987725, 20963175]

約数ペア:

[(1, 20963175), (3, 6987725), (5, 4192635), (15, 1397545), (19, 1103325), (25, 838527), (47, 446025), (57, 367775), (75, 279509), (95, 220665), (141, 148675), (235, 89205), (285, 73555), (313, 66975), (475, 44133), (705, 29735), (893, 23475), (939, 22325), (1175, 17841), (1425, 14711), (1565, 13395), (2679, 7825), (3525, 5947), (4465, 4695)]