21307407

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 11593713

約数列:

[1, 3, 11, 23, 33, 67, 69, 201, 253, 419, 737, 759, 1257, 1541, 2211, 4609, 4623, 9637, 13827, 16951, 28073, 28911, 50853, 84219, 106007, 308803, 318021, 645679, 926409, 1937037, 7102469, 21307407]

約数ペア:

[(1, 21307407), (3, 7102469), (11, 1937037), (23, 926409), (33, 645679), (67, 318021), (69, 308803), (201, 106007), (253, 84219), (419, 50853), (737, 28911), (759, 28073), (1257, 16951), (1541, 13827), (2211, 9637), (4609, 4623)]