21624304

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103963}}^1$

素因数の和:103984

約数の個数: 20

約数和(自身を含む): 45120376

約数和(自身を除く): 23496072

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103963, 207926, 415852, 831704, 1351519, 1663408, 2703038, 5406076, 10812152, 21624304]

約数ペア:

[(1, 21624304), (2, 10812152), (4, 5406076), (8, 2703038), (13, 1663408), (16, 1351519), (26, 831704), (52, 415852), (104, 207926), (208, 103963)]