2121275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 2906064

約数和(自身を除く): 784789

約数列:

[1, 5, 13, 25, 61, 65, 107, 305, 325, 535, 793, 1391, 1525, 2675, 3965, 6527, 6955, 19825, 32635, 34775, 84851, 163175, 424255, 2121275]

約数ペア:

[(1, 2121275), (5, 424255), (13, 163175), (25, 84851), (61, 34775), (65, 32635), (107, 19825), (305, 6955), (325, 6527), (535, 3965), (793, 2675), (1391, 1525)]