19418555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 7676485

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 299, 403, 419, 713, 1495, 2015, 2095, 3565, 5447, 9269, 9637, 12989, 27235, 46345, 48185, 64945, 125281, 168857, 298747, 626405, 844285, 1493735, 3883711, 19418555]

約数ペア:

[(1, 19418555), (5, 3883711), (13, 1493735), (23, 844285), (31, 626405), (65, 298747), (115, 168857), (155, 125281), (299, 64945), (403, 48185), (419, 46345), (713, 27235), (1495, 12989), (2015, 9637), (2095, 9269), (3565, 5447)]