19992465

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 37128000

約数和(自身を除く): 17135535

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 67, 95, 171, 201, 285, 335, 349, 603, 855, 1005, 1047, 1273, 1745, 3015, 3141, 3819, 5235, 6365, 6631, 11457, 15705, 19095, 19893, 23383, 33155, 57285, 59679, 70149, 99465, 116915, 210447, 298395, 350745, 444277, 1052235, 1332831, 2221385, 3998493, 6664155, 19992465]

約数ペア:

[(1, 19992465), (3, 6664155), (5, 3998493), (9, 2221385), (15, 1332831), (19, 1052235), (45, 444277), (57, 350745), (67, 298395), (95, 210447), (171, 116915), (201, 99465), (285, 70149), (335, 59679), (349, 57285), (603, 33155), (855, 23383), (1005, 19893), (1047, 19095), (1273, 15705), (1745, 11457), (3015, 6631), (3141, 6365), (3819, 5235)]