21273285

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4159}}^1$

素因数の和:4209

約数の個数: 32

約数和(自身を含む): 38338560

約数和(自身を除く): 17065275

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4159, 5115, 12477, 20795, 45749, 62385, 128929, 137247, 228745, 386787, 644645, 686235, 1418219, 1933935, 4254657, 7091095, 21273285]

約数ペア:

[(1, 21273285), (3, 7091095), (5, 4254657), (11, 1933935), (15, 1418219), (31, 686235), (33, 644645), (55, 386787), (93, 228745), (155, 137247), (165, 128929), (341, 62385), (465, 45749), (1023, 20795), (1705, 12477), (4159, 5115)]