21624135

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{641}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 37533888

約数和(自身を除く): 15909753

約数列:

[1, 3, 5, 13, 15, 39, 65, 173, 195, 519, 641, 865, 1923, 2249, 2595, 3205, 6747, 8333, 9615, 11245, 24999, 33735, 41665, 110893, 124995, 332679, 554465, 1441609, 1663395, 4324827, 7208045, 21624135]

約数ペア:

[(1, 21624135), (3, 7208045), (5, 4324827), (13, 1663395), (15, 1441609), (39, 554465), (65, 332679), (173, 124995), (195, 110893), (519, 41665), (641, 33735), (865, 24999), (1923, 11245), (2249, 9615), (2595, 8333), (3205, 6747)]