18930975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 36211968

約数和(自身を除く): 17280993

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 107, 175, 321, 337, 525, 535, 749, 1011, 1605, 1685, 2247, 2359, 2675, 3745, 5055, 7077, 8025, 8425, 11235, 11795, 18725, 25275, 35385, 36059, 56175, 58975, 108177, 176925, 180295, 252413, 540885, 757239, 901475, 1262065, 2704425, 3786195, 6310325, 18930975]

約数ペア:

[(1, 18930975), (3, 6310325), (5, 3786195), (7, 2704425), (15, 1262065), (21, 901475), (25, 757239), (35, 540885), (75, 252413), (105, 180295), (107, 176925), (175, 108177), (321, 58975), (337, 56175), (525, 36059), (535, 35385), (749, 25275), (1011, 18725), (1605, 11795), (1685, 11235), (2247, 8425), (2359, 8025), (2675, 7077), (3745, 5055)]